/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-deep: #12121a;
    --bg-surface: #1a1a28;
    --accent-magenta: #ff2d6b;
    --accent-cyan: #00d4ff;
    --accent-green: #00ff88;
    --accent-amber: #ffaa00;
    --text-primary: #e8e8f0;
    --text-muted: #8888a0;
    --font-display: 'Press Start 2P', monospace;
    --font-heading: 'Bungee', cursive;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-body);
}

/* === HORIZONTAL SCROLL TRACK === */
.track-container {
    display: flex;
    flex-direction: row;
    height: 100vh;
    width: 100vw;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.track-container::-webkit-scrollbar {
    display: none;
}

/* === STATIONS === */
.station {
    min-width: 100vw;
    height: 100vh;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-right: 1px solid rgba(0, 212, 255, 0.1);
}

.station-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem;
    text-align: center;
}

.station-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.4;
}

/* === GLITCH TEXT === */
.glitch-text {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 3vw, 2.4rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-primary);
    position: relative;
    animation: glitch-skew 4s infinite linear alternate-reverse;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-text::before {
    color: var(--accent-cyan);
    animation: glitch-1 2s infinite linear alternate-reverse;
    clip-path: inset(0 0 80% 0);
}

.glitch-text::after {
    color: var(--accent-magenta);
    animation: glitch-2 3s infinite linear alternate-reverse;
    clip-path: inset(80% 0 0 0);
}

@keyframes glitch-1 {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(2px, -1px); }
    60% { transform: translate(-1px, 1px); }
    80% { transform: translate(1px, -2px); }
    100% { transform: translate(0); }
}

@keyframes glitch-2 {
    0% { transform: translate(0); }
    25% { transform: translate(2px, 1px); }
    50% { transform: translate(-2px, -1px); }
    75% { transform: translate(1px, 2px); }
    100% { transform: translate(0); }
}

@keyframes glitch-skew {
    0% { transform: skew(0deg); }
    2% { transform: skew(0.5deg); }
    4% { transform: skew(0deg); }
    100% { transform: skew(0deg); }
}

/* === STATION 0: GENESIS === */
#station-0 {
    background: radial-gradient(ellipse at center, var(--bg-surface) 0%, var(--bg-deep) 70%);
}

#station-0 h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--accent-cyan);
    margin-bottom: 2rem;
}

.terminal-block {
    background: rgba(18, 18, 26, 0.9);
    border: 1px solid var(--accent-green);
    border-radius: 4px;
    padding: 1rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-green);
    text-align: left;
    display: inline-block;
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.1);
}

.terminal-block.large {
    display: block;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: var(--accent-magenta);
}

.scroll-hint {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    animation: pulse-hint 2s ease-in-out infinite;
}

.scroll-hint .arrow {
    display: inline-block;
    animation: arrow-move 1.5s ease-in-out infinite;
}

@keyframes pulse-hint {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes arrow-move {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(8px); }
}

/* === STATION 1: DATA GRID === */
.data-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.data-cell {
    background: var(--bg-surface);
    border: 1px solid var(--accent-magenta);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.data-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.data-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--accent-magenta);
}

.data-unit {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
}

.body-text {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-top: 1.5rem;
}

/* === STATION 2: LAYER DIAGRAM === */
.layer-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.layer {
    width: 100%;
    max-width: 500px;
    padding: 1.5rem;
    border-radius: 4px;
    text-align: left;
}

.layer-1 {
    background: rgba(255, 45, 107, 0.1);
    border: 1px solid var(--accent-magenta);
}

.layer-2 {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-green);
}

.layer-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-primary);
    letter-spacing: 0.1em;
}

.connector-line {
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, var(--accent-magenta), var(--accent-green));
}

.block-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.block {
    width: 40px;
    height: 24px;
    background: var(--accent-magenta);
    opacity: 0.6;
    animation: block-pulse 3s ease-in-out infinite;
}

.block.fast {
    width: 30px;
    height: 24px;
    background: var(--accent-green);
    animation: block-pulse-fast 1s ease-in-out infinite;
}

@keyframes block-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

@keyframes block-pulse-fast {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* === STATION 3: ROLLUPS === */
.rollup-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.rollup-card {
    background: var(--bg-surface);
    padding: 2rem;
    border-radius: 4px;
    text-align: center;
}

.rollup-card.optimistic {
    border: 1px solid var(--accent-amber);
}

.rollup-card.zk {
    border: 1px solid var(--accent-green);
}

.rollup-card h3 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.rollup-card.optimistic h3 { color: var(--accent-amber); }
.rollup-card.zk h3 { color: var(--accent-green); }

.rollup-visual {
    width: 100px;
    height: 100px;
    margin: 0 auto 1rem;
}

.rollup-svg {
    width: 100%;
    height: 100%;
}

.mono-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* === STATION 4: STACK === */
.stack-visual {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 2rem auto;
    max-width: 500px;
}

.stack-layer {
    padding: 1.5rem 2rem;
    border: 1px solid var(--text-muted);
    border-bottom: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.stack-layer:last-child {
    border-bottom: 1px solid var(--text-muted);
}

.stack-layer:hover {
    background: rgba(0, 212, 255, 0.05);
    border-color: var(--accent-cyan);
}

.stack-layer[data-layer="app"] { border-left: 3px solid var(--accent-cyan); }
.stack-layer[data-layer="exec"] { border-left: 3px solid var(--accent-green); }
.stack-layer[data-layer="da"] { border-left: 3px solid var(--accent-amber); }
.stack-layer[data-layer="settle"] { border-left: 3px solid var(--accent-magenta); }

.stack-label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
}

.stack-desc {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* === STATION 5: METRICS === */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

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

.metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.metric-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
    height: 80px;
    margin-top: 2rem;
}

.bar {
    width: 8px;
    background: var(--accent-cyan);
    border-radius: 2px 2px 0 0;
    transition: height 0.5s ease;
    opacity: 0.7;
}

/* === STATION 6: FUTURE === */
#station-6 {
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.05) 0%, var(--bg-deep) 70%);
}

.blink .cursor {
    animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.cta-area {
    margin-top: 2rem;
}

.cta-button {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--bg-deep);
    background: var(--accent-green);
    padding: 1rem 2rem;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
    border: 2px solid var(--accent-green);
}

.cta-button:hover {
    background: transparent;
    color: var(--accent-green);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

/* === TRACK INDICATOR === */
.track-indicator {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 30px;
    z-index: 100;
}

.track-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text-muted);
    opacity: 0.4;
}

.track-train {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    width: 20px;
    height: 10px;
    background: var(--accent-cyan);
    border-radius: 2px;
    transition: left 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.station-dots {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: 1px solid var(--text-muted);
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
}

/* === STATION LABEL === */
.current-station-label {
    position: fixed;
    top: 20px;
    left: 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    z-index: 100;
}

/* === SCANLINE OVERLAY === */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
}

/* === STATION TITLE === */
.station-title {
    margin-bottom: 1rem;
    font-size: clamp(1rem, 2.5vw, 2rem);
}