/* ============================================
   ADDC.ai - AI Operations for Adaptive AI Factories
   Premium Dark Theme with Electric Accents
   ============================================ */

/* CSS Variables */
:root {
    /* Core Colors */
    --bg-primary: #07090d;
    --bg-secondary: #0d1117;
    --bg-tertiary: #151b23;
    --bg-card: #12171f;
    --bg-card-hover: #1a222d;

    /* Text Colors - Improved contrast for legibility */
    --text-primary: #f0f3f7;
    --text-secondary: #b0b8c1;
    --text-muted: #9198a1;

    /* Accent Colors - Electric Green (NVIDIA-inspired) */
    --accent: #76b900;
    --accent-light: #8fd619;
    --accent-dark: #5a8f00;
    --accent-glow: rgba(118, 185, 0, 0.4);

    /* Secondary Accent - Cyber Blue */
    --accent-secondary: #00d4ff;
    --accent-secondary-glow: rgba(0, 212, 255, 0.3);

    /* Warning/Alert */
    --warning: #f0a500;
    --warning-glow: rgba(240, 165, 0, 0.4);

    /* Borders & Lines */
    --border-color: rgba(139, 148, 158, 0.2);
    --border-light: rgba(139, 148, 158, 0.1);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    --gradient-dark: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    --gradient-card: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-tertiary) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);

    /* Typography */
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-max: 1280px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ============================================
   Ambient Background
   ============================================ */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(118, 185, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(118, 185, 0, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.glow-orb-1 {
    width: 600px;
    height: 600px;
    background: var(--accent);
    top: -200px;
    right: -100px;
    opacity: 0.15;
}

.glow-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: 20%;
    left: -100px;
    opacity: 0.1;
    animation-delay: -5s;
}

.glow-orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    right: 10%;
    opacity: 0.08;
    animation-delay: -10s;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
    animation: scan 8s linear infinite;
    opacity: 0.5;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

@keyframes scan {
    0% { top: 0; opacity: 0; }
    5% { opacity: 0.5; }
    95% { opacity: 0.5; }
    100% { top: 100%; opacity: 0; }
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 3rem);
    position: relative;
    z-index: 1;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-base);
    background: transparent;
}

.nav.scrolled {
    background: rgba(7, 9, 13, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 3rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-mark {
    width: 40px;
    height: 40px;
    color: var(--text-primary);
}

.logo-mark svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-dot {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link-cta {
    color: var(--bg-primary);
    background: var(--accent);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    font-weight: 600;
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    color: var(--bg-primary);
    background: var(--accent-light);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-primary);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.mobile-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.mobile-link:hover {
    color: var(--accent);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: var(--transition-slow);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 8rem 0 4rem;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 3rem);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(118, 185, 0, 0.1);
    border: 1px solid rgba(118, 185, 0, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.1s;
    opacity: 0;
}

.title-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 540px;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.3s;
    opacity: 0;
}

.hero-subtitle em {
    color: var(--accent);
    font-style: normal;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    background: var(--border-color);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Visual - GPU Ecosystem Visualization */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

.gpu-ecosystem-viz {
    position: relative;
    width: 100%;
    max-width: 520px;
    min-height: 480px;
    background: linear-gradient(145deg, rgba(7, 9, 13, 0.95) 0%, rgba(13, 17, 23, 0.98) 100%);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.25rem;
    overflow: hidden;
    animation: fadeIn 1s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Global Connection Layer */
.global-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.global-connections {
    width: 100%;
    height: 100%;
    opacity: 0.6;
}

.global-flow {
    fill: none;
    stroke: url(#flowGradient);
    stroke-width: 1.5;
    stroke-dasharray: 12 6;
    animation: globalFlow 4s linear infinite;
    filter: url(#glow);
}

.flow-1 { animation-delay: 0s; }
.flow-2 { animation-delay: -0.8s; }
.flow-3 { animation-delay: -1.6s; }
.flow-4 { animation-delay: -2.4s; }
.flow-5 { animation-delay: -3.2s; }

@keyframes globalFlow {
    from { stroke-dashoffset: 36; }
    to { stroke-dashoffset: 0; }
}

/* Global Service Labels */
.global-service-labels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
}

.service-label-group {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.service-label {
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    animation: labelPulse 3s ease-in-out infinite;
}

.service-label.sovereign {
    color: var(--accent-secondary);
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.4);
}

.service-label.neocloud {
    color: var(--accent);
    background: rgba(118, 185, 0, 0.15);
    border: 1px solid rgba(118, 185, 0, 0.4);
}

@keyframes labelPulse {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 1; }
}

/* Data Center Regions */
.dc-regions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    position: relative;
    z-index: 2;
    margin-bottom: 0.75rem;
}

.dc-region {
    background: rgba(21, 27, 35, 0.9);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 0.75rem;
    position: relative;
    transition: var(--transition-base);
}

.dc-region:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.region-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.region-label::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.sovereign-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--accent-secondary);
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.4);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* GPU Rack Visualization */
.dc-cluster {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.gpu-rack {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 0.4rem;
    position: relative;
}

.gpu-rack.dgx-gb200 {
    border-color: rgba(118, 185, 0, 0.4);
}

.gpu-rack.dgx-h100 {
    border-color: rgba(0, 150, 255, 0.3);
}

.gpu-rack.hgx-b200 {
    border-color: rgba(255, 165, 0, 0.3);
}

.rack-header {
    font-size: 0.5rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.gpu-tray {
    display: flex;
    gap: 2px;
    margin-bottom: 2px;
}

.gpu-chip {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    position: relative;
}

.gpu-chip::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 1px;
    background: var(--bg-secondary);
}

.gpu-chip.active::after {
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent-glow);
    animation: gpuPulse 3s ease-in-out infinite;
}

.gpu-chip.warning::after {
    background: var(--warning);
    box-shadow: 0 0 6px var(--warning-glow);
    animation: gpuWarning 0.8s ease-in-out infinite;
}

@keyframes gpuPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes gpuWarning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.nvlink-bar {
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-secondary) 50%, var(--accent) 100%);
    border-radius: 2px;
    margin-top: 0.25rem;
    position: relative;
    overflow: hidden;
}

.nvlink-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: nvlinkFlow 2s linear infinite;
}

@keyframes nvlinkFlow {
    from { left: -50%; }
    to { left: 150%; }
}

/* Cooling & Power Indicators */
.cooling-indicator,
.power-indicator {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.5rem;
    font-size: 0.5rem;
    color: var(--accent-secondary);
}

.cooling-indicator svg {
    width: 12px;
    height: 12px;
    animation: spin 4s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.power-indicator {
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
}

.power-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent);
}

.power-bar {
    height: 3px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.power-fill {
    width: 78%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--warning));
    border-radius: 2px;
    animation: powerPulse 3s ease-in-out infinite;
}

@keyframes powerPulse {
    0%, 100% { width: 78%; }
    50% { width: 82%; }
}

/* Orchestration Layer */
.orchestration-layer {
    background: linear-gradient(90deg, rgba(118, 185, 0, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 2;
}

.orchestration-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    text-align: center;
    margin-bottom: 0.4rem;
}

.workload-streams {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 24px;
    position: relative;
    overflow: hidden;
}

.workload-packet {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: streamFlow 3s linear infinite;
}

.workload-packet:nth-child(1) { animation-delay: 0s; }
.workload-packet:nth-child(2) { animation-delay: -1s; }
.workload-packet:nth-child(3) { animation-delay: -2s; }

.workload-packet[data-type="training"] {
    color: var(--accent);
}

.workload-packet[data-type="inference"] {
    color: var(--accent-secondary);
}

.packet-icon svg {
    width: 14px;
    height: 14px;
}

@keyframes streamFlow {
    0% { transform: translateX(-100px); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateX(100px); opacity: 0; }
}

/* Applications Layer */
.applications-layer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem;
    position: relative;
    z-index: 2;
    margin-bottom: 0.75rem;
}

.app-category {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.4rem 0.6rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    transition: var(--transition-fast);
    cursor: default;
}

.app-category:hover {
    border-color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
    transform: translateY(-2px);
}

.app-category svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.app-category:hover svg {
    color: var(--accent);
}

.app-category span {
    font-size: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.app-category:hover span {
    color: var(--text-primary);
}

/* Different app colors on hover */
.app-category[data-app="healthcare"]:hover { border-color: #ff6b6b; }
.app-category[data-app="healthcare"]:hover svg { color: #ff6b6b; }
.app-category[data-app="finance"]:hover { border-color: #4ecdc4; }
.app-category[data-app="finance"]:hover svg { color: #4ecdc4; }
.app-category[data-app="research"]:hover { border-color: #a855f7; }
.app-category[data-app="research"]:hover svg { color: #a855f7; }
.app-category[data-app="education"]:hover { border-color: #f59e0b; }
.app-category[data-app="education"]:hover svg { color: #f59e0b; }
.app-category[data-app="automotive"]:hover { border-color: #3b82f6; }
.app-category[data-app="automotive"]:hover svg { color: #3b82f6; }
.app-category[data-app="genai"]:hover { border-color: var(--accent); }
.app-category[data-app="genai"]:hover svg { color: var(--accent); }

/* Stats Overlay */
.viz-stats {
    display: flex;
    justify-content: space-around;
    background: rgba(7, 9, 13, 0.9);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 0.6rem;
    position: relative;
    z-index: 2;
}

.viz-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.viz-stat-value {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.viz-stat-label {
    font-size: 0.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.2rem;
}

/* Responsive adjustments for visualization */
@media (max-width: 1200px) {
    .gpu-ecosystem-viz {
        max-width: 480px;
        min-height: 440px;
    }
}

@media (max-width: 768px) {
    .gpu-ecosystem-viz {
        max-width: 100%;
        min-height: auto;
    }

    .global-service-labels {
        grid-template-columns: 1fr;
        gap: 0.25rem;
        margin-bottom: 0.25rem;
    }

    .service-label-group {
        justify-content: flex-start;
        gap: 0.35rem;
    }

    .service-label {
        font-size: 0.5rem;
        padding: 0.15rem 0.35rem;
    }

    .dc-regions {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .dc-region {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 0.5rem;
        align-items: center;
    }

    .dc-cluster {
        flex-direction: row;
        gap: 0.5rem;
    }

    .region-label {
        grid-column: span 2;
    }

    .applications-layer {
        gap: 0.3rem;
    }

    .app-category {
        padding: 0.3rem 0.5rem;
    }
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    margin-bottom: 3rem;
}

.section-header-center {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding: 0.25rem 0.75rem;
    background: rgba(118, 185, 0, 0.1);
    border-radius: 4px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Vision Quote
   ============================================ */
.vision-quote {
    position: relative;
    padding: 2rem 2.5rem;
    background: var(--gradient-card);
    border-left: 3px solid var(--accent);
    border-radius: 0 12px 12px 0;
    margin: 2rem 0;
}

.vision-quote p {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.vision-quote cite {
    display: flex;
    flex-direction: column;
    font-style: normal;
}

.vision-quote cite strong {
    color: var(--text-primary);
    font-weight: 600;
}

.vision-quote cite span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.vision-quote-inline {
    margin: 1.5rem 0;
    padding: 1.5rem 2rem;
}

.vision-quote-inline p {
    font-size: 1.1rem;
}

/* ============================================
   Challenge Section
   ============================================ */
.challenge-section {
    background: var(--bg-secondary);
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.challenge-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-base);
}

.challenge-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.challenge-icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.challenge-icon svg {
    width: 100%;
    height: 100%;
}

.challenge-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.challenge-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   Solution Section
   ============================================ */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.solution-text {
    max-width: 560px;
}

.solution-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.solution-desc strong {
    color: var(--accent);
}

.solution-desc em {
    color: var(--text-primary);
    font-style: normal;
}

.product-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    transition: var(--transition-base);
}

.product-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
}

.product-icon {
    width: 40px;
    height: 40px;
    color: var(--text-primary);
    flex-shrink: 0;
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.product-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Solution Visual - Platform Diagram */
.solution-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.platform-diagram {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.diagram-layer {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    text-align: center;
    transition: var(--transition-base);
}

.diagram-layer span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.layer-top {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(118, 185, 0, 0.1) 100%);
    border-color: var(--accent-secondary);
}

.layer-top span {
    color: var(--accent-secondary);
}

.layer-nodes {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.75rem;
}

.node {
    width: 12px;
    height: 12px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.node:nth-child(2) { animation-delay: -0.5s; }
.node:nth-child(3) { animation-delay: -1s; }

.layer-middle {
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.15) 0%, rgba(118, 185, 0, 0.05) 100%);
    border-color: var(--accent);
}

.layer-middle span {
    color: var(--accent);
    font-weight: 600;
}

.layer-bar {
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
    margin-top: 0.75rem;
    position: relative;
    overflow: hidden;
}

.layer-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s linear infinite;
}

@keyframes shimmer {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

.layer-bottom {
    background: var(--bg-tertiary);
}

.layer-icons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 0.75rem;
}

.infra-icon {
    width: 32px;
    height: 32px;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.infra-icon:hover {
    color: var(--accent);
}

.infra-icon svg {
    width: 100%;
    height: 100%;
}

.diagram-connector {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.diagram-connector svg {
    width: 100%;
    height: 100%;
}

/* ============================================
   Deliverables Section (replaces Framework)
   ============================================ */
.framework-section {
    background: var(--bg-secondary);
}

.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.deliverable-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    gap: 1.5rem;
    transition: var(--transition-base);
}

.deliverable-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.deliverable-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.08) 0%, var(--bg-card) 100%);
    border-color: rgba(118, 185, 0, 0.3);
}

.deliverable-icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    color: var(--accent);
}

.deliverable-icon svg {
    width: 100%;
    height: 100%;
}

.deliverable-content {
    flex: 1;
}

.deliverable-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.deliverable-subtitle {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 1rem;
}

.deliverable-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.deliverable-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    margin-bottom: 1rem;
}

.deliverable-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1rem;
}

.deliverable-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
}

.deliverable-list li strong {
    color: var(--text-primary);
}

.deliverable-highlight {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
    padding: 0.75rem 1rem;
    background: rgba(118, 185, 0, 0.1);
    border-radius: 6px;
    margin-top: 0.5rem;
}

.precision-badge {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

/* ============================================
   Comparison Section
   ============================================ */
.comparison-table-wrapper {
    margin-top: 3rem;
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.comparison-table th {
    padding: 1.25rem 1.5rem;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th:first-child {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.comparison-table th:last-child {
    background: rgba(118, 185, 0, 0.1);
    color: var(--accent);
}

.comparison-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.95rem;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table td:first-child {
    color: var(--text-muted);
}

.comparison-table td:last-child {
    color: var(--text-primary);
}

.status-old, .status-new {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.75rem;
}

.status-old {
    background: var(--text-muted);
}

.status-new {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* ============================================
   Vision Section
   ============================================ */
.vision-section {
    background: var(--bg-secondary);
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.vision-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-base);
}

.vision-card:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
}

.vision-leader {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.leader-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.leader-avatar.nadella {
    background: linear-gradient(135deg, #0078d4, #00bcf2);
    color: white;
}

.leader-avatar.huang {
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: var(--bg-primary);
}

.leader-info {
    display: flex;
    flex-direction: column;
}

.leader-info strong {
    font-size: 0.95rem;
}

.leader-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.vision-card blockquote {
    font-size: 1.05rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border-color);
}

.vision-response {
    background: rgba(118, 185, 0, 0.05);
    border-radius: 8px;
    padding: 1rem;
}

.vision-response strong {
    display: block;
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.vision-response p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   Technology Section
   ============================================ */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.tech-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-base);
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-base);
}

.tech-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.tech-card:hover::before {
    opacity: 1;
}

.tech-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
}

.tech-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.tech-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.cta-content > p,
.cta-subhead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.cta-benefit {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(118, 185, 0, 0.1);
    border: 1px solid rgba(118, 185, 0, 0.3);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.cta-benefit::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.cta-nvidia-message {
    max-width: 700px;
    margin: 0 auto;
    padding: 1.5rem;
    background: rgba(118, 185, 0, 0.05);
    border: 1px solid rgba(118, 185, 0, 0.2);
    border-radius: 12px;
}

.cta-nvidia-message p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.cta-nvidia-message strong {
    color: var(--accent);
}

.cta-badges {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.badge-item svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-contact a {
    color: var(--accent);
    text-decoration: none;
}

.footer-contact a:hover {
    text-decoration: underline;
}

/* ============================================
   Leadership Page Specific
   ============================================ */
.page-header {
    padding: 10rem 0 4rem;
    text-align: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.page-header .section-title {
    margin-bottom: 1rem;
}

.page-header .section-desc {
    max-width: 600px;
    margin: 0 auto;
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.leader-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition-base);
}

.leader-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.leader-card-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--bg-primary);
    margin-bottom: 1.5rem;
}

.leader-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.leader-card .leader-title {
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
}

.leader-card .leader-bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.leader-card .leader-bio strong {
    color: var(--text-primary);
}

/* ============================================
   Contact Page Specific
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(118, 185, 0, 0.1);
    border-radius: 10px;
    color: var(--accent);
}

.contact-method-icon svg {
    width: 24px;
    height: 24px;
}

.contact-method-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-method-info a,
.contact-method-info span {
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
}

.contact-method-info a:hover {
    color: var(--accent);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2.5rem;
}

.contact-form h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(118, 185, 0, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b949e' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-submit {
    margin-top: 1.5rem;
}

.form-submit .btn {
    width: 100%;
    justify-content: center;
}

/* Partner Section */
.partner-section {
    margin-top: 4rem;
    padding-top: 4rem;
    border-top: 1px solid var(--border-light);
}

.partner-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.partner-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition-base);
}

.partner-card:hover {
    border-color: var(--accent);
}

.partner-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.partner-card h4 svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.partner-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        order: -1;
        padding-top: 6rem;
    }

    .solution-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .solution-visual {
        order: -1;
    }

    .deliverables-grid {
        grid-template-columns: 1fr;
    }

    .deliverable-card.featured {
        grid-column: span 1;
    }

    .vision-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .leadership-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .deliverable-card {
        flex-direction: column;
        text-align: center;
    }

    .deliverable-icon {
        margin: 0 auto;
    }

    .deliverable-list {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-divider {
        width: 100%;
        height: 1px;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.875rem 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-badges {
        flex-direction: column;
        align-items: center;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .partner-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .card-tagline {
        margin-left: 0;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-accent {
    color: var(--accent);
}

.text-muted {
    color: var(--text-muted);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Data Center Drill-Down Modal
   ============================================ */
.dc-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.dc-modal.active {
    opacity: 1;
    visibility: visible;
}

/* Rack modal layers on top of region modal */
.dc-modal-rack {
    z-index: 2100;
}

.dc-modal-rack .dc-modal-backdrop {
    background: rgba(0, 0, 0, 0.7);
}

.dc-modal-rack .dc-modal-content {
    max-width: 1000px;
    border-color: var(--accent);
    box-shadow: 0 0 60px rgba(118, 185, 0, 0.2);
}

.dc-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.dc-modal-content {
    position: relative;
    width: 95%;
    max-width: 1100px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: var(--transition-base);
}

.dc-modal.active .dc-modal-content {
    transform: scale(1);
}

.dc-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 10;
}

.dc-modal-close:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--accent);
}

.dc-modal-close svg {
    width: 20px;
    height: 20px;
}

/* Breadcrumb Navigation */
.dc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    font-size: 0.85rem;
}

.breadcrumb-item {
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--accent);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
    cursor: default;
}

.breadcrumb-separator {
    color: var(--text-muted);
}

/* DC View Container */
.dc-view {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

/* DC Header */
.dc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.dc-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.dc-location {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.dc-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(118, 185, 0, 0.1);
    border: 1px solid rgba(118, 185, 0, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--accent);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

.status-indicator.online {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.status-indicator.warning {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning-glow);
}

.status-indicator.offline {
    background: #ef4444;
    animation: none;
}

/* Metrics Dashboard Grid */
.dc-metrics-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.dc-metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1rem;
    transition: var(--transition-fast);
}

.dc-metric-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.metric-icon {
    width: 32px;
    height: 32px;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.metric-icon svg {
    width: 100%;
    height: 100%;
}

.metric-icon.utilization { color: #4ecdc4; }
.metric-icon.power { color: #f0a500; }
.metric-icon.cooling { color: #00d4ff; }
.metric-icon.network { color: #a855f7; }
.metric-icon.pricing { color: #10b981; }

.metric-data {
    margin-bottom: 0.5rem;
}

.metric-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.metric-trend {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    display: inline-block;
}

.metric-trend.up {
    color: var(--accent);
    background: rgba(118, 185, 0, 0.15);
}

.metric-trend.down {
    color: #10b981;
    background: rgba(16, 185, 129, 0.15);
}

.metric-chart {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.mini-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    transition: width 0.5s ease;
}

.mini-bar.network-bar {
    background: linear-gradient(90deg, var(--accent), #a855f7);
}

.metric-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* DC Section */
.dc-section {
    margin-bottom: 2rem;
}

.dc-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-hint {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-muted);
}

/* Workload Distribution */
.workload-distribution {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1rem;
}

.workload-bar {
    display: flex;
    height: 32px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.workload-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bg-primary);
    transition: var(--transition-fast);
}

.workload-segment:hover {
    filter: brightness(1.1);
}

.workload-segment.training {
    background: var(--accent);
}

.workload-segment.inference {
    background: var(--accent-secondary);
}

.workload-segment.finetuning {
    background: #a855f7;
}

.workload-segment.idle {
    background: var(--bg-tertiary);
}

.workload-legend {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.workload-legend span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.workload-legend i {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.workload-legend i.training { background: var(--accent); }
.workload-legend i.inference { background: var(--accent-secondary); }
.workload-legend i.finetuning { background: #a855f7; }
.workload-legend i.idle { background: var(--bg-tertiary); border: 1px solid var(--border-color); }

/* Health Grid */
.health-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.health-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
}

.health-count {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.health-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.health-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.health-bar div {
    height: 100%;
    border-radius: 2px;
}

.health-card.healthy .health-count { color: var(--accent); }
.health-card.healthy .health-bar div { background: var(--accent); }

.health-card.warning .health-count { color: var(--warning); }
.health-card.warning .health-bar div { background: var(--warning); }

.health-card.maintenance .health-count { color: var(--accent-secondary); }
.health-card.maintenance .health-bar div { background: var(--accent-secondary); }

.health-card.offline .health-count { color: #ef4444; }
.health-card.offline .health-bar div { background: #ef4444; }

/* Rack Floor Plan */
.rack-floor-plan {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
}

.rack-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.floor-rack {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    position: relative;
}

.floor-rack:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.floor-rack.offline {
    opacity: 0.6;
}

.floor-rack.offline:hover {
    border-color: var(--warning);
}

.rack-mini-viz {
    display: flex;
    gap: 3px;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.gpu-led {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    background: var(--bg-secondary);
    position: relative;
}

.gpu-led::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 1px;
    background: var(--bg-tertiary);
}

.gpu-led.active::after {
    background: var(--accent);
    box-shadow: 0 0 4px var(--accent-glow);
    animation: ledBlink 2s ease-in-out infinite;
}

.gpu-led.warning::after {
    background: var(--warning);
    box-shadow: 0 0 4px var(--warning-glow);
    animation: ledWarning 0.5s ease-in-out infinite;
}

@keyframes ledBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

@keyframes ledWarning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

.rack-id {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.rack-status {
    display: block;
    font-size: 0.65rem;
    color: var(--warning);
    margin-top: 0.25rem;
}

.cooling-aisle {
    text-align: center;
    font-size: 0.7rem;
    color: var(--accent-secondary);
    padding: 0.5rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px dashed rgba(0, 212, 255, 0.3);
    border-radius: 4px;
    margin-bottom: 1rem;
}

/* ============================================
   Rack Detail View
   ============================================ */
.rack-3d-container {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.rack-3d {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.rack-front {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.rack-unit-detailed {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 0.75rem;
}

.unit-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.unit-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.unit-status {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.unit-status.online {
    background: rgba(118, 185, 0, 0.15);
    color: var(--accent);
}

.unit-status.warning {
    background: rgba(240, 165, 0, 0.15);
    color: var(--warning);
}

/* GPU Array */
.gpu-array {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.gpu-module {
    flex: 1;
    min-width: 60px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    position: relative;
    transition: var(--transition-fast);
}

.gpu-module:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
}

.gpu-module.active .gpu-led-large {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    animation: gpuLedActive 3s ease-in-out infinite;
}

.gpu-module.warning {
    border-color: rgba(240, 165, 0, 0.5);
    background: rgba(240, 165, 0, 0.05);
}

.gpu-module.warning .gpu-led-large {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning-glow);
    animation: gpuLedWarning 0.8s ease-in-out infinite;
}

.gpu-led-large {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: var(--bg-tertiary);
    transition: var(--transition-fast);
}

@keyframes gpuLedActive {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes gpuLedWarning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

.gpu-module span {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
}

.prediction-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--warning);
    color: var(--bg-primary);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.15rem 0.35rem;
    border-radius: 4px;
    animation: badgePulse 1s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nvlink-indicator {
    text-align: center;
    font-size: 0.7rem;
    color: var(--accent);
    padding: 0.25rem;
    background: rgba(118, 185, 0, 0.1);
    border-radius: 4px;
}

.rack-unit-spacer {
    text-align: center;
    padding: 0.75rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-light);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Cooling Unit Visualization */
.cooling-unit {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, var(--bg-tertiary) 100%);
    border-color: rgba(0, 212, 255, 0.3);
}

.cooling-viz {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.coolant-flow {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.coolant-temp {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    min-width: 80px;
}

.temp-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-secondary);
}

.coolant-temp.outlet .temp-value {
    color: var(--warning);
}

.temp-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.coolant-pipe {
    flex: 1;
    height: 12px;
    background: linear-gradient(90deg, var(--accent-secondary), var(--warning));
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.coolant-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: coolantFlow 2s linear infinite;
}

@keyframes coolantFlow {
    from { left: -40px; }
    to { left: 100%; }
}

.cooling-stats {
    display: flex;
    gap: 2rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Power Unit Visualization */
.power-unit {
    background: linear-gradient(135deg, rgba(240, 165, 0, 0.1) 0%, var(--bg-tertiary) 100%);
    border-color: rgba(240, 165, 0, 0.3);
}

.power-viz {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.power-meter {
    flex: 1;
}

.power-gauge {
    position: relative;
    width: 120px;
    height: 70px;
    margin: 0 auto;
}

.power-gauge svg {
    width: 100%;
    height: 100%;
}

.power-arc {
    transition: stroke-dashoffset 0.5s ease;
}

.power-reading {
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.power-kw {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--warning);
    line-height: 1;
}

.power-unit-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.power-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   GPU Failure Prediction Panel
   ============================================ */
.prediction-panel {
    background: var(--bg-card);
    border: 1px solid rgba(240, 165, 0, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
}

.prediction-panel h3 {
    color: var(--warning);
    margin-bottom: 1rem;
}

.prediction-detail {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.prediction-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.prediction-gpu {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.gpu-id {
    font-weight: 600;
    font-size: 1rem;
}

.prediction-confidence {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
}

.prediction-time {
    text-align: right;
    background: rgba(240, 165, 0, 0.1);
    padding: 0.75rem 1rem;
    border-radius: 8px;
}

.time-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--warning);
    line-height: 1;
}

.time-unit {
    font-size: 0.9rem;
    color: var(--warning);
    margin-left: 0.25rem;
}

.time-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.prediction-signals h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.signal-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.signal-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.signal-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
}

.signal-item.critical .signal-icon {
    background: #ef4444;
    color: white;
}

.signal-item.warning .signal-icon {
    background: var(--warning);
    color: var(--bg-primary);
}

.signal-name {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.signal-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.prediction-action h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.action-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.action-status {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.action-status.scheduled {
    background: rgba(118, 185, 0, 0.15);
    color: var(--accent);
}

.action-status.pending {
    background: rgba(240, 165, 0, 0.15);
    color: var(--warning);
}

.action-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Back to Region Button */
.back-to-region {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
    margin-top: 1rem;
}

.back-to-region:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
}

.back-to-region svg {
    width: 18px;
    height: 18px;
}

/* Region Click Indicator */
.dc-region {
    cursor: pointer;
}

.dc-region::after {
    content: 'Click to explore';
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    font-size: 0.5rem;
    color: var(--accent);
    opacity: 0;
    transition: var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dc-region:hover::after {
    opacity: 1;
}

/* Responsive Modal */
@media (max-width: 1024px) {
    .dc-metrics-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .health-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .dc-modal-content {
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }

    .dc-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .rack-row {
        flex-wrap: wrap;
    }

    .floor-rack {
        min-width: calc(50% - 0.375rem);
    }

    .prediction-header {
        flex-direction: column;
        gap: 1rem;
    }

    .prediction-time {
        text-align: left;
        width: 100%;
    }

    .gpu-array {
        justify-content: center;
    }

    .coolant-flow {
        flex-direction: column;
    }

    .power-viz {
        flex-direction: column;
    }
}

/* ============================================
   Architecture Section
   ============================================ */
.architecture-section {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.architecture-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(ellipse, rgba(118, 185, 0, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.architecture-diagram {
    max-width: 900px;
    margin: 0 auto 3rem;
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

/* Architecture Layers */
.arch-layer {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    z-index: 2;
}

.arch-layer-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 1rem;
}

/* Top Layer - Workloads */
.arch-layer-top {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, var(--bg-card) 100%);
    border-color: rgba(0, 212, 255, 0.3);
}

.arch-layer-top .arch-layer-label {
    color: var(--accent-secondary);
}

.arch-items {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.arch-item.workload {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    transition: var(--transition-fast);
    min-width: 100px;
}

.arch-item.workload:hover {
    border-color: var(--accent-secondary);
    transform: translateY(-2px);
}

.arch-item.workload svg {
    width: 24px;
    height: 24px;
    color: var(--accent-secondary);
}

.arch-item.workload span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Connectors */
.arch-connector {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.connector-line {
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-secondary), var(--accent));
    position: relative;
}

.connector-flows {
    position: absolute;
    display: flex;
    gap: 30px;
}

.flow-arrow {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: flowDown 1.5s ease-in-out infinite;
}

.flow-arrow:nth-child(2) { animation-delay: -0.5s; }
.flow-arrow:nth-child(3) { animation-delay: -1s; }

@keyframes flowDown {
    0% { transform: translateY(-15px); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(15px); opacity: 0; }
}

/* Platform Layer (Middle) */
.arch-layer-platform {
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.1) 0%, var(--bg-card) 100%);
    border: 2px solid var(--accent);
    box-shadow: 0 0 30px var(--accent-glow);
}

.platform-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.platform-logo {
    width: 48px;
    height: 48px;
    color: var(--accent);
}

.platform-logo svg {
    width: 100%;
    height: 100%;
}

.platform-title h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.platform-title span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.platform-modules {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.platform-module {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
    transition: var(--transition-fast);
}

.platform-module:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.platform-module.featured {
    border-color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
}

.module-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 8px;
    color: var(--accent);
}

.module-icon svg {
    width: 24px;
    height: 24px;
}

.module-icon.prediction {
    color: var(--warning);
    background: rgba(240, 165, 0, 0.1);
}

.module-icon.convergence {
    color: var(--accent-secondary);
    background: rgba(0, 212, 255, 0.1);
}

.platform-module span {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.platform-module small {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* IT/OT Split Connector */
.it-ot-split {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.split-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

.it-label {
    color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
}

.ot-label {
    color: var(--accent-secondary);
    background: rgba(0, 212, 255, 0.1);
}

.split-line {
    flex: 1;
    height: 2px;
    margin: 0 1rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
}

/* Infrastructure Layer (Bottom) */
.arch-layer-infra {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    background: var(--bg-tertiary);
}

.infra-side {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1.25rem;
}

.it-side {
    border-color: rgba(118, 185, 0, 0.3);
}

.ot-side {
    border-color: rgba(0, 212, 255, 0.3);
}

.infra-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    text-align: center;
}

.it-side .infra-label {
    color: var(--accent);
}

.ot-side .infra-label {
    color: var(--accent-secondary);
}

.infra-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.infra-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.infra-item:hover {
    border-color: var(--border-color);
}

.infra-item svg {
    width: 32px;
    height: 32px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.it-side .infra-item svg {
    color: var(--accent);
}

.ot-side .infra-item svg {
    color: var(--accent-secondary);
}

.infra-item span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    display: block;
}

.infra-item small {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
}

/* GPU Rack Icon */
.gpu-rack-icon {
    width: 32px;
    height: 40px;
    position: relative;
    flex-shrink: 0;
}

.rack-visual {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 3px;
    padding: 3px;
    height: 100%;
}

.rack-visual .rack-unit {
    flex: 1;
    background: var(--bg-tertiary);
    border-radius: 1px;
}

.rack-visual .rack-unit.active {
    background: var(--accent);
    box-shadow: 0 0 4px var(--accent-glow);
    animation: rackBlink 2s ease-in-out infinite;
}

.gpu-rack-icon.h100 .rack-unit.active {
    animation-delay: -0.5s;
}

@keyframes rackBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Cooling Icon */
.cooling-icon {
    width: 36px;
    height: 36px;
    position: relative;
    flex-shrink: 0;
}

.cooling-icon svg {
    width: 100%;
    height: 100%;
    animation: spin 8s linear infinite;
}

.coolant-flow-mini {
    position: absolute;
    inset: 8px;
    border: 2px solid var(--accent-secondary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 2s linear infinite reverse;
}

/* AboveCloud Extension */
.arch-extension {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 1rem;
}

.extension-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 40px;
}

.connector-dot {
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-glow);
}

.connector-line-v {
    width: 2px;
    flex: 1;
    background: linear-gradient(180deg, var(--accent), transparent);
}

.abovecloud-box {
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.05) 0%, var(--bg-card) 100%);
    border: 1px dashed var(--accent);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    text-align: center;
    max-width: 500px;
}

.abovecloud-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.abovecloud-header svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.abovecloud-header span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
}

.abovecloud-box p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Architecture Key Points */
.arch-key-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.key-point {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    transition: var(--transition-fast);
}

.key-point:hover {
    border-color: var(--accent);
}

.key-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(118, 185, 0, 0.1);
    border-radius: 8px;
    flex-shrink: 0;
}

.key-icon svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
}

.key-content strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.key-content span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Architecture Responsive */
@media (max-width: 768px) {
    .platform-modules {
        grid-template-columns: repeat(2, 1fr);
    }

    .arch-layer-infra {
        grid-template-columns: 1fr;
    }

    .arch-key-points {
        grid-template-columns: 1fr;
    }

    .arch-items {
        gap: 0.75rem;
    }

    .arch-item.workload {
        min-width: 80px;
        padding: 0.5rem 0.75rem;
    }

    .it-ot-split {
        padding: 0 0.5rem;
    }
}

/* ============================================
   Full-Stack Implementation Section
   ============================================ */
.fullstack-section {
    background: var(--bg-secondary);
}

/* ROI Stats */
.roi-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.roi-stat {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    transition: var(--transition-fast);
}

.roi-stat:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.roi-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.75rem;
}

.roi-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Full-Stack Grid */
.fullstack-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.fullstack-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-fast);
}

.fullstack-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.fullstack-card.featured {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.08) 0%, var(--bg-card) 100%);
}

.fullstack-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 1.25rem;
    color: var(--accent);
}

.fullstack-icon svg {
    width: 100%;
    height: 100%;
}

.fullstack-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.fullstack-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.fullstack-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fullstack-features li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.fullstack-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

/* Timeline Comparison */
.timeline-comparison {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
}

.timeline-comparison h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
}

.timeline-bars {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.timeline-item {
    display: grid;
    grid-template-columns: 180px 1fr 120px;
    align-items: center;
    gap: 1rem;
}

.timeline-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.timeline-bar {
    display: flex;
    height: 40px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.bar-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bg-primary);
    transition: var(--transition-fast);
}

.bar-segment span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 0.25rem;
}

.bar-segment.planning { background: #6366f1; }
.bar-segment.construction { background: #f59e0b; }
.bar-segment.integration { background: #ef4444; }
.bar-segment.testing { background: #10b981; }

.timeline-item.modular .bar-segment.planning { background: var(--accent); }
.timeline-item.modular .bar-segment.construction { background: var(--accent-light); }
.timeline-item.modular .bar-segment.integration { background: var(--accent-secondary); }
.timeline-item.modular .bar-segment.testing { background: #10b981; }

.timeline-duration {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    text-align: right;
}

.timeline-item.traditional .timeline-duration {
    color: var(--warning);
}

.timeline-item.modular .timeline-duration {
    color: var(--accent);
}

.timeline-note {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
}

/* ============================================
   Sovereign AI Section
   ============================================ */
.sovereign-section {
    background: var(--bg-primary);
    position: relative;
}

.sovereign-intro {
    margin-bottom: 3rem;
}

.sovereign-quote {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 2.5rem;
    background: linear-gradient(135deg, rgba(118, 185, 0, 0.08) 0%, var(--bg-card) 100%);
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
}

.sovereign-quote p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

.sovereign-quote strong {
    color: var(--accent);
}

/* Sovereign Grid */
.sovereign-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.sovereign-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-fast);
}

.sovereign-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.sovereign-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.25rem;
    color: var(--accent);
}

.sovereign-icon svg {
    width: 100%;
    height: 100%;
}

.sovereign-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.sovereign-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

/* Sovereign Apps Tags */
.sovereign-apps {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.app-tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.app-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(118, 185, 0, 0.1);
}

/* Sovereign Stats */
.sovereign-stats {
    display: flex;
    gap: 2rem;
}

.sov-stat {
    text-align: center;
}

.sov-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.sov-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Sovereign Checklist */
.sovereign-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sovereign-checklist li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.sovereign-checklist li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

/* Sovereign Regions */
.sovereign-regions {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
}

.sovereign-regions h4 {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.region-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.region-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.region-badge:hover {
    border-color: var(--accent);
    background: rgba(118, 185, 0, 0.05);
}

.region-flag {
    font-size: 1.25rem;
}

/* Responsive Full-Stack & Sovereign */
@media (max-width: 1024px) {
    .roi-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .roi-stat {
        padding: 1.5rem;
    }

    .roi-value {
        font-size: 2rem;
    }

    .fullstack-grid {
        grid-template-columns: 1fr;
    }

    .sovereign-grid {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .timeline-label {
        text-align: center;
    }

    .timeline-duration {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .fullstack-card {
        padding: 1.5rem;
    }

    .sovereign-card {
        padding: 1.5rem;
    }

    .sovereign-quote {
        padding: 1.5rem;
    }

    .sovereign-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .region-badges {
        gap: 0.5rem;
    }

    .region-badge {
        padding: 0.35rem 0.75rem;
        font-size: 0.8rem;
    }
}