:root {
    /* Colors */
    --surface: #131313;
    --surface-dim: #131313;
    --surface-bright: #3a3939;
    --surface-container-lowest: #0e0e0e;
    --surface-container-low: #1c1b1b;
    --surface-container: #201f1f;
    --surface-container-high: #2a2a2a;
    --surface-container-highest: #353534;
    --on-surface: #e5e2e1;
    --on-surface-variant: #dac2ad;
    --inverse-surface: #e5e2e1;
    --inverse-on-surface: #313030;
    --outline: #a28d79;
    --outline-variant: #544433;
    --surface-tint: #ffb869;
    --primary: #ffc485;
    --on-primary: #482900;
    --primary-container: #ff9d00;
    --on-primary-container: #663c00;
    --inverse-primary: #885200;
    --secondary: #ffb68f;
    --on-secondary: #542100;
    --secondary-container: #e86d13;
    --on-secondary-container: #491c00;
    --tertiary: #f3cb51;
    --on-tertiary: #3c2f00;
    --tertiary-container: #d5b038;
    --on-tertiary-container: #564400;
    --error: #ffb4ab;
    --on-error: #690005;
    --error-container: #93000a;
    --on-error-container: #ffdad6;
    
    /* Brand specific */
    --background: #050505; /* Obsidian base */
    --on-background: #e5e2e1;
    --surface-variant: #353534;
    --circuit-amber: #FFB800;
    --sunset-orange: #FF4D00;
    --bantu-gold: #C5A059;
    --obsidian-base: #050505;
    --glass-stroke: rgba(255, 255, 255, 0.12);
    
    /* Spacing */
    --unit: 8px;
    --gutter: 24px;
    --margin-mobile: 16px;
    --margin-desktop: 64px;
    
    /* Borders */
    --rounded-sm: 0.25rem;
    --rounded: 0.5rem;
    --rounded-md: 0.75rem;
    --rounded-lg: 1rem;
    --rounded-xl: 1.5rem;
    --rounded-full: 9999px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--background);
    color: var(--on-background);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Typography Classes */
.display-lg {
    font-family: 'Sora', sans-serif;
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.headline-lg {
    font-family: 'Sora', sans-serif;
    font-size: clamp(32px, 4vw, 40px);
    font-weight: 700;
    line-height: 1.2;
}

.title-md {
    font-family: 'Sora', sans-serif;
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
}

.body-lg {
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 400;
    line-height: 28px;
}

.body-md {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 24px;
}

.body-sm {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
}

.label-sm {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    line-height: 16px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.label-caps {
    font-family: 'Sora', sans-serif;
    font-size: 14px;
    font-weight: 800;
    line-height: 20px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: var(--margin-mobile);
    padding-right: var(--margin-mobile);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--margin-desktop);
        padding-right: var(--margin-desktop);
    }
}

.text-amber { color: var(--circuit-amber); }
.text-bantu-gold { color: var(--bantu-gold); }
.text-muted { color: var(--on-surface-variant); }
.text-on-surface { color: var(--on-surface); }
.text-center { text-align: center; }

.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.mb-xl { margin-bottom: 48px; }
.mt-lg { margin-top: 24px; }
.mt-xl { margin-top: 48px; }

.p-0 { padding: 0 !important; }
.p-xl { padding: 48px; }

.opacity-5 { opacity: 0.05; }
.opacity-70 { opacity: 0.7; }
.opacity-90 { opacity: 0.9; }

.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-sm { max-width: 24rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.w-full { width: 100%; }

.flex { display: flex; }
.flex-align { display: flex; align-items: center; gap: 8px; }
.justify-center { justify-content: center; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }

.relative { position: relative; }
.overflow-hidden { overflow: hidden; }

.grid-2, .grid-3, .grid-4 {
    display: grid;
    gap: var(--gutter);
}

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
    .col-span-2 { grid-column: span 2; }
}

.align-start { align-items: start; }

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.hover-amber:hover {
    color: var(--circuit-amber);
}

/* Glassmorphism */
.glass-card {
    background: rgba(19, 19, 19, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-stroke);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--rounded-lg);
    padding: 32px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 184, 0, 0.15);
    border-color: rgba(255, 184, 0, 0.3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--rounded-full);
    font-family: 'Sora', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-transform: uppercase;
    border: none;
    outline: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-primary {
    background: var(--circuit-amber);
    color: var(--obsidian-base);
    box-shadow: 0 4px 14px rgba(255, 184, 0, 0.2);
}

.btn-primary:hover {
    background: #FFC433; /* slightly lighter */
    box-shadow: 0 0 20px rgba(255, 184, 0, 0.5), 0 0 40px rgba(255, 184, 0, 0.2);
    transform: scale(1.02);
}

.btn-secondary {
    background: transparent;
    color: var(--on-surface);
    border: 1px solid var(--glass-stroke);
}

.btn-secondary:hover {
    border-color: var(--circuit-amber);
    box-shadow: 0 0 15px rgba(255, 184, 0, 0.2) inset, 0 0 15px rgba(255, 184, 0, 0.2);
}

.btn-text {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-text:hover {
    text-shadow: 0 0 8px rgba(255, 184, 0, 0.5);
    letter-spacing: 0.5px;
}

.chip {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--rounded-full);
    border: 1px solid var(--glass-stroke);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--on-surface-variant);
}

.chip-interactive:hover {
    border-color: var(--circuit-amber);
    color: var(--circuit-amber);
    box-shadow: 0 0 10px rgba(255, 184, 0, 0.2);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-stroke);
    padding: 16px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Sora', sans-serif;
    font-weight: 800;
    font-size: 20px;
    color: var(--circuit-amber);
    letter-spacing: 0.1em;
}

.nav-links {
    display: none;
    gap: 32px;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 14px;
    color: var(--on-surface-variant);
    position: relative;
    padding-bottom: 4px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--on-surface);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--circuit-amber);
    box-shadow: 0 0 8px var(--circuit-amber);
}

/* Main Sections */
section {
    padding: 120px 0;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 160px;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 184, 0, 0.08) 0%, rgba(5, 5, 5, 0) 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-content {
    max-width: 900px;
}

.hero .tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--rounded-full);
    border: 1px solid var(--circuit-amber);
    color: var(--circuit-amber);
    box-shadow: 0 0 10px rgba(255, 184, 0, 0.2) inset;
    margin-bottom: 24px;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero p {
    color: var(--on-surface-variant);
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-media-backdrop {
    margin-top: 80px;
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 400px;
    border-radius: var(--rounded-xl);
    border: 1px solid var(--glass-stroke);
    background: linear-gradient(180deg, rgba(32, 31, 31, 0.4) 0%, rgba(14, 14, 14, 0.8) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-media-backdrop::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
}

.play-button-large {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: var(--circuit-amber);
    color: var(--obsidian-base);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
    box-shadow: 0 0 40px rgba(255, 184, 0, 0.3);
}

.play-button-large:hover {
    transform: scale(1.1);
}

.pulse-ring {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 2px solid var(--circuit-amber);
    animation: pulse 2s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
    z-index: 1;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(3); opacity: 0; }
}

.faded-text {
    font-family: 'Sora', sans-serif;
    font-weight: 800;
    font-size: clamp(40px, 8vw, 100px);
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.05);
    position: absolute;
    bottom: -20px;
    white-space: nowrap;
    z-index: 0;
    letter-spacing: 0.05em;
}

/* Feature Spotlight */
.feature-spotlight {
    background: var(--surface-container-lowest);
    border-top: 1px solid var(--glass-stroke);
    border-bottom: 1px solid var(--glass-stroke);
}

.spotlight-container {
    display: grid;
    gap: 64px;
    align-items: center;
}

@media (min-width: 992px) {
    .spotlight-container {
        grid-template-columns: 1fr 1fr;
    }
}

.spotlight-image-card {
    position: relative;
    border-radius: var(--rounded-lg);
    overflow: hidden;
    border: 1px solid var(--glass-stroke);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.spotlight-image-card img {
    width: 100%;
    height: auto;
    display: block;
    filter: contrast(1.1) brightness(0.9);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.1) 0%, rgba(255, 77, 0, 0.05) 100%);
    mix-blend-mode: color-dodge;
}

.spotlight-content > * {
    margin-bottom: 24px;
}

.quote-card {
    border-left: 4px solid var(--circuit-amber);
    padding: 16px 24px;
    background: rgba(255, 184, 0, 0.05);
    border-radius: 0 var(--rounded) var(--rounded) 0;
    margin-top: 32px;
}

.quote-card p {
    color: var(--bantu-gold);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-style: italic;
    margin: 0;
}

.unesco-reference {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 40px;
    padding: 16px;
    border-radius: var(--rounded-md);
    border: 1px solid var(--glass-stroke);
    background: rgba(255, 255, 255, 0.02);
}

.unesco-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--on-surface);
}

/* Value Prop */
.icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--rounded);
    background: rgba(255, 184, 0, 0.1);
    color: var(--circuit-amber);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 184, 0, 0.2);
}

/* Verticals */
.vertical-card {
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.vertical-bg-icon {
    position: absolute;
    top: -20px;
    right: -20px;
    pointer-events: none;
}

.check-list {
    list-style: none;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--on-surface-variant);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
}

.commercial-card {
    border-color: var(--circuit-amber);
    box-shadow: 0 0 30px rgba(255, 184, 0, 0.1) inset;
}

.commercial-bg {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1511671782779-c97d3d27a1d4?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80') center/cover;
    opacity: 0.3;
    z-index: 0;
    filter: sepia(1) hue-rotate(-20deg) saturate(2);
}

.commercial-content {
    position: relative;
    z-index: 1;
    height: 100%;
    background: linear-gradient(0deg, var(--background) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

/* Impact */
.globe-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--sunset-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 0 40px rgba(255, 77, 0, 0.4);
}

.language-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

/* Investment */
.investment {
    background: var(--surface-container-low);
    border-top: 1px solid var(--glass-stroke);
}

.investment-item {
    display: flex;
    gap: 20px;
}

/* Footer */
.footer {
    border-top: 1px solid var(--glass-stroke);
    padding: 80px 0 40px;
    background: var(--surface-container-lowest);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--on-surface-variant);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--circuit-amber);
}

.footer-bottom {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--glass-stroke);
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
    }
}