:root {
    --bg-dark: #02040a;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-gold: #D4AF37; 
    --accent-gold-light: #F4e5a0;
    --accent-blue: #3b82f6;
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(15, 23, 42, 0.6);
    --font-heading: 'Cinzel', serif;
    --font-subheading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition-slow: 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-base: 0.3s ease;
}

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

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

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

/* Typography Helpers */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
}

.eyebrow {
    display: block;
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.85rem;
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--accent-gold);
    transition: var(--transition-base);
    z-index: -1;
}

.btn:hover {
    color: var(--bg-dark);
}

.btn:hover::before {
    width: 100%;
}

/* Nav */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-base);
    mix-blend-mode: difference;
}

.navbar.scrolled {
    padding: 1rem 5%;
    background: rgba(2, 4, 10, 0.9);
    backdrop-filter: blur(10px);
    mix-blend-mode: normal;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.05em;
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-base);
}

.nav-links a:hover {
    color: var(--accent-gold);
}

.cta-button {
    border: 1px solid rgba(255,255,255,0.3);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    animation: slowZoom 20s infinite alternate;
}

@keyframes slowZoom {
    0% { transform: scale(1.1); }
    100% { transform: scale(1.2); }
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(2,4,10,0.5), rgba(2,4,10,0.9));
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #b4b4b4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-indicator .line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent-gold), transparent);
}

/* Vision Section */
.vision-section {
    padding: 8rem 5%;
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.vision-text .section-title {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}

.lead-text {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.vision-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.image-frame {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    border: 1px solid var(--glass-border);
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.image-frame:hover img {
    transform: scale(1.03);
}

/* Methodology Section */
.methodology-section {
    padding: 8rem 5%;
    background: linear-gradient(to bottom, var(--bg-dark), #050a14);
}

.section-header {
    margin-bottom: 5rem;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 3rem 2rem;
    border-radius: 2px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.1);
    border-color: rgba(212, 175, 55, 0.3);
}

.card-icon {
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
}

.card h3 {
    font-family: var(--font-subheading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Architecture Section */
.architecture-section {
    position: relative;
    padding: 10rem 5%;
    display: flex;
    align-items: center;
    min-height: 80vh;
}

.arch-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.arch-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.arch-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(2,4,10,0.95) 40%, rgba(2,4,10,0.4));
}

.relative-z {
    position: relative;
    z-index: 10;
}

.arch-content {
    max-width: 600px;
}

.arch-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.arch-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

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

.features-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    color: var(--accent-gold-light);
    font-family: var(--font-heading);
}

.features-list li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-gold);
    margin-right: 15px;
    transform: rotate(45deg);
}

/* Footer (Updated) */
.footer {
    padding: 4rem 5%;
    background: #000;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.footer-col p, .footer-col a {
    color: var(--text-secondary);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Animations - Utility classes */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
}

.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s ease;
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

.delay-1 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; transition-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; transition-delay: 0.6s; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .vision-grid { grid-template-columns: 1fr; }
    .arch-overlay { background: rgba(2,4,10,0.85); }
    .navbar { padding: 1rem; }
    .nav-links { display: none; } /* Simplification for prototype */
}