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

/* === VARIABLES === */
:root {
    --neon-green: #05ffa1;
    --neon-blue: #01cdfe;
    --neon-pink: #ff71ce;
    --neon-purple: #b967ff;
    --deep-void: #1a0a2e;
    --pale-gold: #fffb96;
    --ghost-lavender: #f0e6ff;
    --mid-purple: #2d1b4e;
}

/* === BASE === */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--deep-void);
    color: var(--ghost-lavender);
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
}

/* === NOISE OVERLAY === */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    mix-blend-mode: overlay;
}

/* === CHAMBERS === */
.chamber {
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 4rem 2rem;
}

.chamber-content {
    text-align: center;
    max-width: 800px;
    width: 100%;
}

/* === TYPOGRAPHY === */
.title-display {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--neon-pink);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.title-accent {
    color: var(--pale-gold);
}

.subtitle-body {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--ghost-lavender);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
}

.body-text {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    color: var(--ghost-lavender);
    opacity: 0.85;
    margin-top: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
}

.mono-text {
    font-family: 'Space Mono', monospace;
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    color: var(--neon-green);
    text-align: left;
    line-height: 2;
}

/* === CHEVRON === */
.chevron-container {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
}

.chevron {
    opacity: 0.6;
    animation: chevron-bob 1.6s ease-in-out infinite;
}

@keyframes chevron-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* === CHAMBER BACKGROUNDS === */
.chamber-1 {
    background: radial-gradient(ellipse at 50% 80%, var(--mid-purple) 0%, var(--deep-void) 70%);
}

.chamber-2 {
    background: radial-gradient(ellipse at 30% 50%, rgba(185, 103, 255, 0.15) 0%, var(--deep-void) 60%);
}

.chamber-3 {
    background: radial-gradient(ellipse at 70% 40%, rgba(1, 205, 254, 0.1) 0%, var(--deep-void) 60%);
}

.chamber-4 {
    background: radial-gradient(ellipse at 50% 50%, rgba(5, 255, 161, 0.08) 0%, var(--deep-void) 60%);
}

.chamber-5 {
    background: radial-gradient(ellipse at 50% 30%, rgba(255, 113, 206, 0.12) 0%, var(--deep-void) 60%);
}

/* === PUZZLE GRID === */
.puzzle-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    max-width: 300px;
    margin: 2rem auto;
}

.puzzle-piece {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--neon-purple);
    border-radius: 8px;
    opacity: 0;
    transform: scale(0.8) rotate(5deg);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.puzzle-piece.visible {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.piece-1 {
    background: linear-gradient(135deg, rgba(255, 113, 206, 0.2), transparent);
    transition-delay: 0.1s;
}

.piece-2 {
    background: linear-gradient(135deg, rgba(1, 205, 254, 0.2), transparent);
    transition-delay: 0.2s;
}

.piece-3 {
    background: linear-gradient(135deg, rgba(5, 255, 161, 0.2), transparent);
    transition-delay: 0.3s;
}

.piece-4 {
    background: linear-gradient(135deg, rgba(185, 103, 255, 0.2), transparent);
    transition-delay: 0.4s;
}

/* === CARD STACK === */
.card-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.card {
    background: rgba(45, 27, 78, 0.6);
    border: 1px solid rgba(185, 103, 255, 0.3);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    text-align: left;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.card.visible {
    opacity: 1;
    transform: translateX(0);
}

.card-1 { transition-delay: 0.1s; }
.card-2 { transition-delay: 0.25s; }
.card-3 { transition-delay: 0.4s; }

.card-number {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--neon-blue);
    display: block;
    margin-bottom: 0.5rem;
}

.card-text {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.95rem;
    color: var(--ghost-lavender);
}

/* === MONO BLOCK === */
.mono-block {
    background: rgba(26, 10, 46, 0.8);
    border: 1px solid rgba(5, 255, 161, 0.3);
    border-radius: 8px;
    padding: 2rem;
    margin-top: 2rem;
    display: inline-block;
    text-align: left;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
}

/* === FINAL GLYPH === */
.final-glyph {
    margin-top: 3rem;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 1s ease 0.4s, transform 1s ease 0.4s;
}

/* === VISIBLE STATE === */
.chamber.in-view .title-display,
.chamber.in-view .subtitle-body,
.chamber.in-view .body-text,
.chamber.in-view .mono-block,
.chamber.in-view .final-glyph {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* === RESPONSIVE === */
@media (max-width: 600px) {
    .card-stack {
        padding: 0 1rem;
    }
    .mono-block {
        padding: 1.5rem;
    }
    .mono-text {
        font-size: 0.75rem;
    }
}