:root {
    --bg-color: #000;
}

body.timeline-bg {
    background-color: var(--bg-color);
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: #e2e8f0;
    overflow-x: hidden;
}

.transparent-nav {
    background: transparent !important;
    border-bottom: none !important;
    position: fixed;
    width: 100%;
    z-index: 100;
}

.cinzel { font-family: 'Cinzel', serif; }
.inter { font-family: 'Inter', sans-serif; }
.text-glow { text-shadow: 0 0 15px rgba(255,255,255,0.5); }

/* Stars Parallax bg */
.stars-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: #000;
    z-index: -1;
}

/* Hero */
.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}
.hero-section h1 { font-size: 4rem; }

/* Scroll mouse */
.scroll-prompt {
    position: absolute; bottom: 30px;
    left: 50%; transform: translateX(-50%);
}
.mouse {
    width: 24px; height: 36px;
    border: 2px solid white;
    border-radius: 12px;
    position: relative;
}
.mouse::before {
    content: ''; position: absolute;
    width: 4px; height: 8px;
    background: white; border-radius: 2px;
    top: 6px; left: 50%; transform: translateX(-50%);
    animation: scrollWheel 2s infinite;
}
@keyframes scrollWheel {
    0% { top: 6px; opacity: 1; }
    100% { top: 18px; opacity: 0; }
}

/* Timeline Base */
.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 100px 20px;
}

.center-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, #fff 5%, #333 90%, transparent);
    z-index: 1;
}

.timeline-event {
    position: relative;
    width: 50%;
    padding: 20px 40px;
    box-sizing: border-box;
    z-index: 2;
    margin-bottom: 250px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.timeline-event.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-event.right {
    left: 50%;
}
.timeline-event:not(.right) {
    left: 0;
    text-align: right;
}

/* Year Label */
.timeline-event::before {
    content: attr(data-epoch);
    position: absolute;
    font-family: 'Cinzel', serif;
    font-size: 1.2rem;
    font-weight: bold;
    color: #aaccff;
    top: 50%;
    transform: translateY(-50%);
}
.timeline-event:not(.right)::before { right: -250px; }
.timeline-event.right::before { left: -250px; }

@media(max-width: 768px) {
    .center-line { left: 20px; }
    .timeline-event { width: 100%; left: 0 !important; text-align: left !important; padding-left: 60px; }
    .timeline-event:not(.right)::before, .timeline-event.right::before {
        left: 60px; right: auto; top: -20px; transform: none; font-size: 1rem;
    }
}

.event-marker {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    z-index: 3;
    border: 3px solid #000;
}
.timeline-event:not(.right) .event-marker { right: -8px; }
.timeline-event.right .event-marker { left: -8px; }
@media(max-width: 768px) {
    .timeline-event:not(.right) .event-marker { right: auto; left: 12px; }
}

.glow-marker {
    background: var(--glow-col, #3b82f6);
    box-shadow: 0 0 15px var(--glow-col, #3b82f6);
}

.glass-card {
    background: rgba(10, 15, 25, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.border-green { border-color: rgba(16, 185, 129, 0.3); }