/* === Custom Properties === */
:root {
    --ocean-deep: #0a1628;
    --coastal-depth: #1a3a4a;
    --sea-glass: #7ecfc0;
    --bleached-sand: #f0ebe3;
    --sand-dark: #e8ddd0;
    --driftwood: #d4a574;
    --chrome-start: #c0c0c0;
    --chrome-mid: #ffffff;
    --chrome-end: #a0a0a0;
    --bling-pink: #ff69b4;
    --tx-green: #4ae3b5;
    --warning-gold: #f5c842;
    --hud-teal: #4a8a8a;
    --pale-teal: #d4e8e5;
    --soft-teal: #b8e0e0;
}

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

html {
    scroll-behavior: smooth;
}

body.transactology {
    background: var(--ocean-deep);
    color: var(--pale-teal);
    font-family: 'DM Sans', sans-serif;
    font-weight: 400;
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    line-height: 1.72;
    overflow-x: hidden;
}

/* === Chrome Rail === */
.chrome-rail {
    position: fixed;
    left: 48px;
    top: 0;
    width: 4px;
    height: 100vh;
    background: linear-gradient(to bottom, var(--soft-teal), var(--driftwood), var(--bling-pink));
    z-index: 100;
    opacity: 0.6;
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.1s linear;
}

.chrome-rail::before,
.chrome-rail::after {
    content: '';
    position: absolute;
    left: -2px;
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--chrome-start), var(--chrome-mid), var(--chrome-end));
    transform: rotate(45deg);
}

.chrome-rail::before { top: 16.66%; }
.chrome-rail::after { top: 50%; }

/* === Chapter Indicator === */
.chapter-indicator {
    position: fixed;
    top: 32px;
    right: 32px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.chapter-indicator__current {
    font-family: 'Anybody', sans-serif;
    font-weight: 900;
    font-stretch: 125%;
    font-size: 48px;
    background: linear-gradient(135deg, var(--chrome-start) 0%, var(--chrome-mid) 25%, var(--chrome-end) 50%, var(--chrome-mid) 75%, var(--chrome-start) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}

.chapter-indicator__divider {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: var(--sea-glass);
    opacity: 0.5;
}

.chapter-indicator__total {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    color: var(--sea-glass);
    opacity: 0.6;
}

/* === Scenes === */
.scene {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.scene--pulse {
    background: radial-gradient(ellipse at 30% 70%, var(--coastal-depth) 0%, var(--ocean-deep) 70%);
}

.scene--chapter {
    background: radial-gradient(ellipse at 30% 70%, var(--coastal-depth) 0%, var(--ocean-deep) 70%);
    padding: 80px 24px;
}

.scene--light {
    background: linear-gradient(180deg, var(--bleached-sand) 0%, var(--sand-dark) 100%);
}

.scene--interlude {
    min-height: 60vh;
    background: var(--ocean-deep);
}

.scene--finale {
    background: radial-gradient(ellipse at 50% 50%, var(--coastal-depth) 0%, var(--ocean-deep) 70%);
    padding: 80px 24px;
}

/* === HUD Overlay === */
.hud-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 2;
}

.hud-bracket {
    position: absolute;
    opacity: 0.35;
    animation: hudPulse 3s ease-in-out infinite;
}

.hud-bracket--tl { top: 24px; left: 24px; }
.hud-bracket--tr { top: 24px; right: 24px; }
.hud-bracket--bl { bottom: 24px; left: 24px; }
.hud-bracket--br { bottom: 24px; right: 24px; }

@keyframes hudPulse {
    0%, 100% { opacity: 0.25; }
    50% { opacity: 0.45; }
}

.hud-status-bar {
    position: absolute;
    top: 24px;
    left: 80px;
    right: 80px;
    height: 1px;
    background: rgba(126, 207, 192, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-top: 8px;
}

.hud-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.65rem, 0.8vw, 0.75rem);
    color: var(--sea-glass);
    opacity: 0.6;
    letter-spacing: 0.04em;
}

.scene--light .hud-label {
    color: var(--coastal-depth);
}

.hud-reticle {
    position: absolute;
    top: 50%;
    right: 15%;
    transform: translate(50%, -50%);
    animation: reticleRotate 20s linear infinite;
    opacity: 0.2;
}

@keyframes reticleRotate {
    from { transform: translate(50%, -50%) rotate(0deg); }
    to { transform: translate(50%, -50%) rotate(360deg); }
}

/* === Pulse Scene === */
.pulse-container {
    position: relative;
    z-index: 1;
}

.pulse-svg {
    display: block;
}

@keyframes pulseRing {
    0% { r: 60; opacity: 0.6; stroke-width: 1.5; }
    100% { r: 180; opacity: 0; stroke-width: 0.5; }
}

.pulse-ring {
    animation: pulseRing 3s ease-out infinite;
}

.pulse-ring--2 { animation-delay: 1s; }
.pulse-ring--3 { animation-delay: 2s; }

.hash-ticker {
    position: absolute;
    width: 100%;
    overflow: hidden;
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.7rem, 0.85vw, 0.8rem);
    color: var(--sea-glass);
    opacity: 0.4;
    letter-spacing: 0.04em;
    white-space: nowrap;
    z-index: 1;
}

.hash-ticker--top { top: 30%; }
.hash-ticker--bottom { bottom: 30%; }

.hash-ticker__line {
    display: inline-block;
    animation: tickerScroll 20s linear infinite;
}

.hash-ticker__line--reverse {
    animation: tickerScrollReverse 22s linear infinite;
}

@keyframes tickerScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@keyframes tickerScrollReverse {
    from { transform: translateX(-50%); }
    to { transform: translateX(0); }
}

.chrome-title {
    font-family: 'Anybody', sans-serif;
    font-weight: 900;
    font-stretch: 125%;
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--chrome-start) 0%, var(--chrome-mid) 25%, var(--chrome-end) 50%, var(--chrome-mid) 75%, var(--chrome-start) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    z-index: 2;
    margin-top: 40px;
    text-align: center;
}

.chrome-title::after {
    content: '';
    position: absolute;
    top: 0;
    left: -30px;
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    animation: shimmer 3s ease-in-out 8s infinite;
}

@keyframes shimmer {
    0% { left: -30px; }
    100% { left: calc(100% + 30px); }
}

.pulse-subtitle {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    color: var(--driftwood);
    margin-top: 16px;
    z-index: 2;
    opacity: 0.8;
    letter-spacing: 0.02em;
}

/* === Chrome Headings === */
.chrome-heading {
    font-family: 'Anybody', sans-serif;
    font-weight: 900;
    font-stretch: 125%;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--chrome-start) 0%, var(--chrome-mid) 25%, var(--chrome-end) 50%, var(--chrome-mid) 75%, var(--chrome-start) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
    font-variation-settings: 'wght' 100, 'wdth' 75;
    transition: font-variation-settings 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chrome-heading.in-view {
    font-variation-settings: 'wght' 900, 'wdth' 125;
}

.chrome-heading--dark {
    background: linear-gradient(135deg, #666 0%, #333 25%, #555 50%, #333 75%, #666 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.chrome-heading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -30px;
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    animation: shimmer 3s ease-in-out 8s infinite;
}

/* === Column === */
.column {
    max-width: 640px;
    width: 100%;
    position: relative;
    z-index: 3;
}

/* === Prose === */
.prose p {
    margin-bottom: 1.5em;
    color: var(--pale-teal);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.prose.in-view p {
    opacity: 1;
    transform: translateY(0);
}

.prose--dark p {
    color: var(--coastal-depth);
}

.mono-accent {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.9em;
    color: var(--sea-glass);
    letter-spacing: 0.04em;
}

.prose--dark .mono-accent {
    color: var(--coastal-depth);
}

.accent-callout {
    font-family: 'Anybody', sans-serif;
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    color: var(--bling-pink);
    line-height: 1.5;
}

/* === Interlude === */
.interlude-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.75rem, 0.9vw, 0.875rem);
    color: var(--sea-glass);
    letter-spacing: 0.12em;
    opacity: 0.5;
    margin-bottom: 32px;
    text-align: center;
}

.flow-diagram {
    max-width: 90vw;
}

.flow-node {
    opacity: 0;
    transition: opacity 0.4s ease;
}

.scene--interlude.in-view .flow-node {
    opacity: 1;
}

.flow-edge {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    transition: stroke-dashoffset 0.6s ease;
}

.scene--interlude.in-view .flow-edge {
    stroke-dashoffset: 0;
}

/* === Rhinestone Grid === */
.rhinestone-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle 1.5px at center, var(--driftwood) 100%, transparent 100%);
    background-size: 48px 48px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

.rhinestone-grid--full {
    opacity: 0.15;
}

/* === Wave Separator === */
.wave-separator {
    width: 100%;
    height: 20px;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.wave-svg {
    width: 200%;
    height: 100%;
    animation: waveShift 60s linear infinite;
}

@keyframes waveShift {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* === Finale === */
.finale-signature {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(126, 207, 192, 0.2);
}

.finale-signature .mono-accent {
    font-size: clamp(0.8rem, 1vw, 0.9rem);
    opacity: 0.5;
}

/* === Stagger delays for prose paragraphs === */
.prose.in-view p:nth-child(1) { transition-delay: 0ms; }
.prose.in-view p:nth-child(2) { transition-delay: 80ms; }
.prose.in-view p:nth-child(3) { transition-delay: 160ms; }
.prose.in-view p:nth-child(4) { transition-delay: 240ms; }

/* === Stagger delays for flow nodes === */
.scene--interlude.in-view .flow-node:nth-of-type(1) { transition-delay: 0ms; }
.scene--interlude.in-view .flow-node:nth-of-type(2) { transition-delay: 100ms; }
.scene--interlude.in-view .flow-node:nth-of-type(3) { transition-delay: 200ms; }
.scene--interlude.in-view .flow-node:nth-of-type(4) { transition-delay: 300ms; }
.scene--interlude.in-view .flow-node:nth-of-type(5) { transition-delay: 400ms; }

.scene--interlude.in-view .flow-edge:nth-of-type(1) { transition-delay: 500ms; }
.scene--interlude.in-view .flow-edge:nth-of-type(2) { transition-delay: 600ms; }
.scene--interlude.in-view .flow-edge:nth-of-type(3) { transition-delay: 700ms; }
.scene--interlude.in-view .flow-edge:nth-of-type(4) { transition-delay: 800ms; }
.scene--interlude.in-view .flow-edge:nth-of-type(5) { transition-delay: 900ms; }
.scene--interlude.in-view .flow-edge:nth-of-type(6) { transition-delay: 1000ms; }

/* === Mobile adjustments === */
@media (max-width: 768px) {
    .chrome-rail { left: 16px; }
    .chapter-indicator { top: 16px; right: 16px; }
    .chapter-indicator__current { font-size: 32px; }
    .hud-bracket--tl, .hud-bracket--tr,
    .hud-bracket--bl, .hud-bracket--br { display: none; }
    .hud-status-bar { left: 24px; right: 24px; font-size: 0.6rem; }
    .column { padding: 0 16px; }
    .flow-diagram { max-width: 95vw; }
}