@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&family=Outfit:wght@300;600;800&display=swap');

:root {
    --bg-deep: #020617;
    --bg-slate: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #06b6d4;
    --accent-glow: rgba(6, 182, 212, 0.5);
    --glass: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Glassmorphism Utility */
.glass {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Mountain Background with Digital Overlay */
#bg-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: #020617;
    overflow: hidden;
}

#bg-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('assets/hero-bg-clean.png') no-repeat center center;
    background-size: cover;
    filter: brightness(0.5) contrast(1.1);
    opacity: 0.9;
}

/* Digital Topographic Pattern Overlay */
.topo-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
    mix-blend-mode: screen;
    animation: pulse 15s infinite ease-in-out;
}

/* Subtle Glowing Data Streams */
#bg-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(6, 182, 212, 0.02) 61px, transparent 62px);
    animation: scanline 30s infinite linear;
}

@keyframes scanline {
    from { transform: translateY(-100%); }
    to { transform: translateY(100%); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

/* Sections */
section {
    min-height: 100vh;
    padding: 100px 10%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 40px;
}

/* Components */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-deep);
    box-shadow: 0 0 20px var(--accent-glow);
}

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

.btn-secondary {
    border: 1px solid var(--accent);
    color: var(--accent);
}

.btn-secondary:hover {
    background: rgba(6, 182, 212, 0.1);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background: rgba(2, 6, 23, 0.5);
    backdrop-filter: blur(8px);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Cards */
.archive-card {
    padding: 30px;
    margin-bottom: 20px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.archive-card:hover {
    transform: scale(1.02);
    border-color: var(--accent);
}

.archive-number {
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 10px;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
    -webkit-appearance: none;
    appearance: none;
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; }
    section { padding: 80px 5%; }
}