:root {
    --deep-night: #0a0a1a;
    --panel-bg: #12121f;
    --card-bg: #1e1e2e;
    --neon-cyan: #00e5ff;
    --neon-purple: #b388ff;
    --neon-amber: #ffb347;
    --neon-pink: #ff7eb3;
    --text-primary: #e8e0f0;
    --text-muted: rgba(232, 224, 240, 0.6);
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--deep-night);
    color: var(--text-primary);
    font-family: 'Noto Sans KR', 'IBM Plex Mono', sans-serif;
}

/* Horizontal Track */
.horizontal-track {
    display: flex;
    width: 500vw;
    height: 100vh;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
}

.panel {
    position: relative;
    width: 100vw;
    height: 100vh;
    flex-shrink: 0;
    scroll-snap-align: start;
    overflow: hidden;
    background: var(--panel-bg);
}

/* Bokeh Layer */
.bokeh-layer {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    animation: bokehFadeIn 2s ease-out 0.5s forwards;
}

.panel-arrival .bokeh-layer {
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 126, 179, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(0, 229, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(179, 136, 255, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 85% 20%, rgba(255, 179, 71, 0.15) 0%, transparent 35%);
}

.panel-street .bokeh-layer {
    background:
        radial-gradient(circle at 15% 70%, rgba(255, 179, 71, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 60% 25%, rgba(0, 229, 255, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 90% 80%, rgba(255, 126, 179, 0.2) 0%, transparent 35%);
}

.panel-tent .bokeh-layer {
    background:
        radial-gradient(circle at 30% 40%, rgba(255, 179, 71, 0.35) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 179, 71, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 50% 20%, rgba(179, 136, 255, 0.15) 0%, transparent 45%);
}

.panel-arcade .bokeh-layer {
    background:
        radial-gradient(circle at 40% 50%, rgba(0, 229, 255, 0.3) 0%, transparent 45%),
        radial-gradient(circle at 80% 30%, rgba(179, 136, 255, 0.25) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(255, 126, 179, 0.15) 0%, transparent 35%);
}

.panel-closing .bokeh-layer {
    background:
        radial-gradient(circle at 50% 50%, rgba(179, 136, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 20% 20%, rgba(0, 229, 255, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(255, 126, 179, 0.25) 0%, transparent 45%);
}

@keyframes bokehFadeIn {
    to { opacity: 1; }
}

/* Rain Overlay */
.rain-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: repeating-linear-gradient(
        transparent,
        transparent 2px,
        rgba(0, 229, 255, 0.03) 2px,
        rgba(0, 229, 255, 0.03) 4px
    );
    animation: rainDrift 0.8s linear infinite;
    pointer-events: none;
}

@keyframes rainDrift {
    to { transform: translateY(4px); }
}

/* Panel Content */
.panel-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 2rem;
}

/* Neon Title */
.neon-title {
    font-family: 'Audiowide', cursive;
    font-size: clamp(2.5rem, 7vw, 6rem);
    letter-spacing: 0.06em;
    color: var(--neon-cyan);
    text-shadow:
        0 0 7px currentColor,
        0 0 10px currentColor,
        0 0 21px currentColor,
        0 0 42px var(--neon-cyan);
    opacity: 0;
    animation: neonFlicker 3s ease-out 1s forwards;
}

@keyframes neonFlicker {
    0% { opacity: 0; }
    10% { opacity: 0.8; }
    12% { opacity: 0.4; }
    14% { opacity: 0.9; }
    20% { opacity: 0.6; }
    25% { opacity: 1; }
    100% { opacity: 1; }
}

.subtitle {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.9rem, 2vw, 1.3rem);
    color: var(--text-muted);
    margin-top: 1rem;
    letter-spacing: 0.15em;
    opacity: 0;
    animation: fadeIn 1.5s ease-out 2s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Scroll Hint */
.scroll-hint {
    position: absolute;
    bottom: 3rem;
    right: 3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fadeIn 1s ease-out 3s forwards;
}

.hint-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    color: var(--neon-purple);
    letter-spacing: 0.1em;
}

.hint-arrow {
    width: 24px;
    height: 2px;
    background: var(--neon-purple);
    position: relative;
    animation: arrowPulse 1.5s ease-in-out infinite;
}

.hint-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--neon-purple);
    border-top: 2px solid var(--neon-purple);
    transform: rotate(45deg);
}

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

/* Neon Signs */
.sign-cluster {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.neon-sign {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    font-size: clamp(1.5rem, 4vw, 3rem);
    padding: 0.5rem 1.5rem;
    border: 2px solid;
    border-radius: 4px;
}

.sign-1 {
    color: var(--neon-pink);
    border-color: var(--neon-pink);
    text-shadow: 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink);
    box-shadow: 0 0 10px var(--neon-pink), inset 0 0 10px rgba(255, 126, 179, 0.1);
    animation: signFlicker1 4s ease-in-out infinite;
}

.sign-2 {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan), inset 0 0 10px rgba(0, 229, 255, 0.1);
    animation: signFlicker2 3.5s ease-in-out infinite 0.5s;
}

.sign-3 {
    color: var(--neon-amber);
    border-color: var(--neon-amber);
    text-shadow: 0 0 10px var(--neon-amber), 0 0 20px var(--neon-amber);
    box-shadow: 0 0 10px var(--neon-amber), inset 0 0 10px rgba(255, 179, 71, 0.1);
    animation: signFlicker1 5s ease-in-out infinite 1s;
}

@keyframes signFlicker1 {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.85; }
    52% { opacity: 0.6; }
    54% { opacity: 0.9; }
}

@keyframes signFlicker2 {
    0%, 100% { opacity: 1; }
    30% { opacity: 0.7; }
    32% { opacity: 1; }
    70% { opacity: 0.8; }
}

/* Section Headings */
.section-heading {
    font-family: 'Audiowide', cursive;
    font-size: clamp(1.5rem, 4vw, 3rem);
    letter-spacing: 0.04em;
    color: var(--neon-purple);
    text-shadow: 0 0 10px var(--neon-purple), 0 0 20px var(--neon-purple);
    margin-bottom: 1.5rem;
    text-align: center;
}

.section-heading.amber-glow {
    color: var(--neon-amber);
    text-shadow: 0 0 10px var(--neon-amber), 0 0 20px var(--neon-amber);
}

.section-heading.cyan-glow {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
}

.body-text {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 500px;
    text-align: center;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 800px;
    margin-top: 2rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid rgba(179, 136, 255, 0.2);
    border-radius: 8px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.info-card:hover {
    border-color: var(--neon-purple);
    box-shadow: 0 0 15px rgba(179, 136, 255, 0.15);
}

.card-icon {
    font-size: 2rem;
    color: var(--neon-amber);
    display: block;
    margin-bottom: 1rem;
}

.card-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.card-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Tent Glow */
.tent-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 40%;
    background: radial-gradient(ellipse at bottom, rgba(255, 179, 71, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

/* Arcade Screen */
.arcade-screen {
    width: min(600px, 80vw);
    height: 300px;
    background: #0a0a1a;
    border: 3px solid var(--neon-cyan);
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3), inset 0 0 30px rgba(0, 229, 255, 0.05);
    overflow: hidden;
    position: relative;
    margin-bottom: 2rem;
}

.screen-scanlines {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.15) 2px,
        rgba(0, 0, 0, 0.15) 4px
    );
    pointer-events: none;
    z-index: 1;
}

.screen-content {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.mono-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    color: var(--neon-cyan);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 5px var(--neon-cyan);
}

.cursor-blink {
    font-family: 'IBM Plex Mono', monospace;
    color: var(--neon-cyan);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Closing Panel */
.closing-content {
    gap: 1.5rem;
}

.closing-title {
    color: var(--neon-purple);
    text-shadow:
        0 0 7px var(--neon-purple),
        0 0 10px var(--neon-purple),
        0 0 21px var(--neon-purple),
        0 0 42px var(--neon-purple);
}

.closing-tagline {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.85rem, 1.5vw, 1.1rem);
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.closing-links {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.neon-link {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--neon-cyan);
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--neon-cyan);
    border-radius: 4px;
    transition: all 0.3s;
    letter-spacing: 0.08em;
}

.neon-link:hover {
    background: rgba(0, 229, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.neon-link.amber {
    color: var(--neon-amber);
    border-color: var(--neon-amber);
}

.neon-link.amber:hover {
    background: rgba(255, 179, 71, 0.1);
    box-shadow: 0 0 15px rgba(255, 179, 71, 0.3);
}

.neon-link.pink {
    color: var(--neon-pink);
    border-color: var(--neon-pink);
}

.neon-link.pink:hover {
    background: rgba(255, 126, 179, 0.1);
    box-shadow: 0 0 15px rgba(255, 126, 179, 0.3);
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple), var(--neon-pink));
    z-index: 100;
    transition: width 0.1s;
}

/* Responsive */
@media (max-width: 768px) {
    .info-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .sign-cluster {
        flex-direction: column;
        align-items: center;
    }

    .closing-links {
        flex-direction: column;
        align-items: center;
    }
}