/* BioGem Lab — Shared CSS */

body { letter-spacing: 0.005em; line-height: 1.7; }
h1, h2, h3, h4 { letter-spacing: 0.01em; line-height: 1.25; }

.hero-bg {
    background-image: url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?w=1920&q=80');
    background-size: cover; background-position: center; background-attachment: fixed;
}
.hero-overlay {
    background: linear-gradient(to right, rgba(11,15,23,0.92) 0%, rgba(11,15,23,0.78) 40%, rgba(11,15,23,0.45) 70%, rgba(11,15,23,0.25) 100%);
}
.gold-line {
    background: linear-gradient(90deg, transparent, rgba(197,160,89,0.4), transparent);
    height: 1px;
}
.glass-panel {
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.08);
}
.card-lift {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -15px rgba(0,0,0,0.2);
}
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}
.float-slow { animation: float 6s ease-in-out infinite; }

.section-spacing { padding-top: 7rem; padding-bottom: 7rem; }
@media (max-width: 768px) { .section-spacing { padding-top: 4rem; padding-bottom: 4rem; } }

.gradient-text {
    background: linear-gradient(135deg, #C5A059 0%, #E8D5B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-shadow {
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.molecule-pattern {
    background-image: radial-gradient(circle at 2px 2px, rgba(197,160,89,0.07) 1px, transparent 0);
    background-size: 40px 40px;
}

nav a { transition: color 0.3s ease; }
nav a:hover { color: #C5A059; }

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scroll */
html { scroll-behavior: smooth; }