/* ============================================================
   quietjoon.net - Cinematic / Layered-Depth / Watercolor / Circuit
   Palette: dark-neon
   Typography: Playfair Display (serif), Inter (body), Space Mono (labels)
   ============================================================ */

/* --- Reset & Tokens --- */
:root {
    --c-cinema-dark: #0A0E1A;
    --c-midnight-purple: #1A0A20;
    --c-electric-violet: #8B5CF6;
    --c-dark-teal: #0D9488;
    --c-neon-coral: #F97316;
    --c-silver-screen: #C8D0D8;
    --c-dim-gray: #6B7280;

    --font-serif: "Playfair Display", Georgia, serif;
    --font-sans: "Inter", system-ui, sans-serif;
    --font-mono: "Space Mono", "Courier New", monospace;

    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);

    --letterbox-h: 5vh;
}

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

html, body {
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    background-color: var(--c-cinema-dark);
    color: var(--c-silver-screen);
    line-height: 1.75;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse at 20% 10%, rgba(26, 10, 32, 0.95) 0%, transparent 60%),
        linear-gradient(180deg, #0A0E1A 0%, #1A0A20 100%);
    background-attachment: fixed;
    overflow-y: scroll;
}

/* ============================================================
   LAYERED DEPTH SYSTEM (z:0 background, z:1 mid, z:2 fore)
   ============================================================ */

.layer-background,
.layer-midground {
    position: fixed;
    inset: 0;
    pointer-events: none;
    will-change: transform;
}

.layer-background {
    z-index: 0;
}

.layer-midground {
    z-index: 1;
}

.layer-foreground {
    position: relative;
    z-index: 2;
}

/* ============================================================
   CIRCUIT BOARD TRACES
   ============================================================ */

.circuit-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s var(--ease-soft);
}

.circuit-svg.is-revealed {
    opacity: 1;
}

.circuit-traces path {
    stroke-dasharray: 2400;
    stroke-dashoffset: 2400;
    animation: trace-draw 6s var(--ease-soft) forwards;
}

.circuit-traces path:nth-child(2) { animation-delay: 0.4s; }
.circuit-traces path:nth-child(3) { animation-delay: 0.8s; }
.circuit-traces path:nth-child(4) { animation-delay: 1.2s; }
.circuit-traces path:nth-child(5) { animation-delay: 1.6s; }

@keyframes trace-draw {
    to { stroke-dashoffset: 0; }
}

.circuit-nodes circle {
    opacity: 0;
    animation: node-glow 3s var(--ease-soft) forwards;
    animation-delay: calc(var(--i, 0) * 60ms + 1.8s);
    transform-origin: center;
}

@keyframes node-glow {
    0% { opacity: 0; }
    50% { opacity: 0.35; }
    100% { opacity: 0.18; }
}

/* ============================================================
   WATERCOLOR WASHES
   ============================================================ */

.watercolor {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    mix-blend-mode: screen;
    opacity: 0;
    will-change: transform, opacity;
    transition: opacity 1.5s var(--ease-soft);
}

.watercolor.is-revealed {
    opacity: 0.22;
}

.wash-violet {
    width: 65vw;
    height: 65vw;
    top: -10vh;
    left: -10vw;
    background: radial-gradient(circle at 40% 40%,
        rgba(139, 92, 246, 0.55) 0%,
        rgba(139, 92, 246, 0.30) 35%,
        transparent 70%);
    animation: drift-a 26s ease-in-out infinite alternate;
}

.wash-teal {
    width: 55vw;
    height: 55vw;
    top: 20vh;
    right: -10vw;
    background: radial-gradient(circle at 60% 50%,
        rgba(13, 148, 136, 0.60) 0%,
        rgba(13, 148, 136, 0.30) 40%,
        transparent 75%);
    animation: drift-b 32s ease-in-out infinite alternate;
}

.wash-violet-deep {
    width: 70vw;
    height: 70vw;
    top: 60vh;
    left: 10vw;
    background: radial-gradient(circle at 50% 50%,
        rgba(106, 60, 200, 0.50) 0%,
        rgba(106, 60, 200, 0.25) 35%,
        transparent 70%);
    animation: drift-c 38s ease-in-out infinite alternate;
}

.wash-coral {
    width: 35vw;
    height: 35vw;
    top: 130vh;
    right: 15vw;
    background: radial-gradient(circle at 50% 50%,
        rgba(249, 115, 22, 0.32) 0%,
        rgba(249, 115, 22, 0.15) 40%,
        transparent 75%);
    animation: drift-d 28s ease-in-out infinite alternate;
}

.watercolor.is-revealed.wash-coral {
    opacity: 0.14;
}

@keyframes drift-a {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(8vw, 6vh) scale(1.08); }
}
@keyframes drift-b {
    0%   { transform: translate(0, 0) scale(1.05); }
    100% { transform: translate(-6vw, 10vh) scale(0.95); }
}
@keyframes drift-c {
    0%   { transform: translate(0, 0) scale(0.95); }
    100% { transform: translate(5vw, -8vh) scale(1.10); }
}
@keyframes drift-d {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-7vw, 4vh) scale(1.12); }
}

/* ============================================================
   LETTERBOX BARS (cinematic framing)
   ============================================================ */

.letterbox {
    position: absolute;
    left: 0;
    right: 0;
    height: var(--letterbox-h);
    background: var(--c-cinema-dark);
    z-index: 3;
    pointer-events: none;
}

.letterbox-top { top: 0; box-shadow: 0 0 40px rgba(0, 0, 0, 0.6); }
.letterbox-bottom { bottom: 0; box-shadow: 0 0 40px rgba(0, 0, 0, 0.6); }

/* ============================================================
   TITLE CARD (Scene 01)
   ============================================================ */

.title-card {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.title-card-inner {
    text-align: center;
    padding: 0 6vw;
    max-width: 1100px;
    position: relative;
}

.film-slate {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--c-electric-violet);
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0;
    animation: slate-in 1s var(--ease-soft) 0.4s forwards;
    border: 1px solid rgba(139, 92, 246, 0.3);
    display: inline-block;
    padding: 6px 14px;
    background: rgba(10, 14, 26, 0.5);
}

@keyframes slate-in {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.brand-wordmark {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(48px, 11vw, 140px);
    line-height: 0.95;
    letter-spacing: -0.02em;
    color: var(--c-silver-screen);
    margin-bottom: 1.6rem;
    opacity: 0;
    transform: translateY(50px);
    background: linear-gradient(
        180deg,
        var(--c-silver-screen) 0%,
        #aab1bc 60%,
        #7d818d 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow:
        0 0 40px rgba(139, 92, 246, 0.25),
        0 0 80px rgba(13, 148, 136, 0.15);
}

.brand-wordmark.is-revealed {
    animation: wordmark-bounce 0.85s var(--ease-spring) forwards;
}

@keyframes wordmark-bounce {
    0%   { opacity: 0; transform: translateY(50px); }
    60%  { opacity: 1; transform: translateY(-8px); }
    100% { opacity: 1; transform: translateY(0); }
}

.title-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(16px, 1.8vw, 22px);
    color: var(--c-silver-screen);
    opacity: 0;
    margin-bottom: 3rem;
    transition: opacity 1s var(--ease-soft);
}

.title-subtitle.is-revealed {
    opacity: 0.9;
}

.title-credits {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: center;
    opacity: 0;
    transition: opacity 1.2s var(--ease-soft);
    transition-delay: 0.4s;
}

.title-credits.is-revealed {
    opacity: 0.7;
}

.credit-line {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--c-dim-gray);
    text-transform: uppercase;
}

.scroll-cue {
    position: absolute;
    bottom: calc(var(--letterbox-h) + 24px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
    animation: cue-in 1s var(--ease-soft) 2.4s forwards;
}

@keyframes cue-in {
    from { opacity: 0; }
    to   { opacity: 0.6; }
}

.scroll-cue-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent 0%, var(--c-electric-violet) 100%);
    animation: cue-pulse 2.2s ease-in-out infinite;
}

@keyframes cue-pulse {
    0%, 100% { transform: scaleY(1); opacity: 0.5; }
    50%      { transform: scaleY(1.4); opacity: 1; }
}

.scroll-cue-text {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.25em;
    color: var(--c-dim-gray);
}

/* ============================================================
   SCENE / CHAPTER COMMON
   ============================================================ */

.scene {
    position: relative;
    padding: 12vh 6vw;
    max-width: 1400px;
    margin: 0 auto;
}

.scene-header {
    margin-bottom: 4rem;
    border-left: 2px solid var(--c-electric-violet);
    padding-left: 1.6rem;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-spring), transform 0.8s var(--ease-spring);
}

.scene-header.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

.chapter-number {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.22em;
    color: var(--c-electric-violet);
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    padding: 4px 10px;
    border: 1px solid rgba(139, 92, 246, 0.4);
    background: rgba(10, 14, 26, 0.6);
}

.scene-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(32px, 5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.015em;
    color: var(--c-silver-screen);
    margin-bottom: 0.6rem;
    text-shadow: 0 0 40px rgba(139, 92, 246, 0.15);
}

.scene-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(16px, 1.4vw, 19px);
    color: var(--c-dim-gray);
}

.scene-body {
    max-width: 880px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.9s var(--ease-soft) 0.2s, transform 0.9s var(--ease-soft) 0.2s;
}

.scene-body.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

.scene-paragraph {
    font-size: clamp(16px, 1.5vw, 18px);
    color: var(--c-silver-screen);
    margin-bottom: 1.4rem;
    max-width: 720px;
}

.emph {
    font-weight: 600;
    color: var(--c-electric-violet);
    border-bottom: 1px dotted rgba(139, 92, 246, 0.5);
    padding-bottom: 1px;
}

/* ============================================================
   SCENE 02: ORIGIN
   ============================================================ */

.scene-origin {
    padding-top: 16vh;
}

/* ============================================================
   SCENE 03: FILMSTRIP
   ============================================================ */

.scene-filmstrip {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
}

.scene-filmstrip .scene-header {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding-left: calc(6vw + 1.6rem);
    padding-right: 6vw;
}

.filmstrip {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding: 4vh 6vw 6vh 6vw;
    scrollbar-width: thin;
    scrollbar-color: var(--c-electric-violet) var(--c-cinema-dark);
}

.filmstrip::-webkit-scrollbar {
    height: 8px;
}

.filmstrip::-webkit-scrollbar-track {
    background: rgba(10, 14, 26, 0.8);
}

.filmstrip::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.5);
    border-radius: 4px;
}

.film-frame {
    flex: 0 0 auto;
    width: 320px;
    min-height: 380px;
    scroll-snap-align: start;
    position: relative;
    background: linear-gradient(160deg, rgba(26, 10, 32, 0.9) 0%, rgba(10, 14, 26, 0.95) 100%);
    border: 8px solid var(--c-cinema-dark);
    border-top: 22px solid var(--c-cinema-dark);
    border-bottom: 22px solid var(--c-cinema-dark);
    padding: 28px 26px;
    box-shadow:
        0 14px 40px rgba(0, 0, 0, 0.5),
        inset 0 0 0 1px rgba(139, 92, 246, 0.2);
    transition: transform 0.5s var(--ease-spring), box-shadow 0.5s var(--ease-soft);
    color: var(--c-silver-screen);
    will-change: transform;
}

/* Sprocket holes (top + bottom) */
.film-frame::before,
.film-frame::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 14px;
    background-image: radial-gradient(
        circle at 16px 50%,
        var(--c-cinema-dark) 0,
        var(--c-cinema-dark) 4px,
        transparent 4.5px,
        transparent
    );
    background-size: 32px 14px;
    background-repeat: repeat-x;
    background-color: #1a1f2e;
    pointer-events: none;
}

.film-frame::before {
    top: -22px;
}

.film-frame::after {
    bottom: -22px;
}

.film-frame:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow:
        0 20px 60px rgba(139, 92, 246, 0.25),
        inset 0 0 0 1px rgba(139, 92, 246, 0.45);
}

.frame-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--font-mono);
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(107, 114, 128, 0.3);
}

.frame-number {
    font-size: 22px;
    color: var(--c-electric-violet);
    letter-spacing: 0.08em;
    font-weight: 700;
}

.frame-stamp {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--c-dim-gray);
    text-transform: uppercase;
}

.frame-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 26px;
    line-height: 1.15;
    margin-bottom: 0.9rem;
    color: var(--c-silver-screen);
}

.frame-text {
    font-size: 15px;
    line-height: 1.65;
    color: rgba(200, 208, 216, 0.82);
    margin-bottom: 1.4rem;
}

.frame-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-dark-teal);
    text-transform: lowercase;
    position: absolute;
    bottom: 18px;
    left: 26px;
}

.filmstrip-cue {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 0 6vw 4vh 6vw;
}

.cue-line {
    height: 1px;
    flex: 0 1 80px;
    background: linear-gradient(90deg, transparent 0%, var(--c-dim-gray) 50%, transparent 100%);
}

.cue-text {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--c-dim-gray);
    text-transform: uppercase;
}

/* ============================================================
   SCENE 04: NETWORK
   ============================================================ */

.network-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.4rem;
    max-width: 1100px;
}

.network-card {
    position: relative;
    padding: 1.8rem 1.6rem 1.6rem 1.6rem;
    background: linear-gradient(160deg, rgba(26, 10, 32, 0.55) 0%, rgba(10, 14, 26, 0.85) 100%);
    border-left: 2px solid var(--c-dark-teal);
    transition: transform 0.5s var(--ease-spring), border-color 0.4s var(--ease-soft);
    overflow: hidden;
}

.network-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 100% 0%, rgba(13, 148, 136, 0.18) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-soft);
    pointer-events: none;
}

.network-card:hover {
    transform: translateY(-4px);
    border-left-color: var(--c-electric-violet);
}

.network-card:hover::after {
    opacity: 1;
}

.network-card-num {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--c-dark-teal);
    margin-bottom: 0.6rem;
    display: block;
}

.network-card-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 26px;
    color: var(--c-silver-screen);
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.network-card-text {
    font-size: 15px;
    line-height: 1.65;
    color: rgba(200, 208, 216, 0.78);
}

/* ============================================================
   SCENE 05: ON CRAFT
   ============================================================ */

.craft-stanzas {
    max-width: 760px;
}

.stanza {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(20px, 2.2vw, 26px);
    line-height: 1.55;
    color: rgba(200, 208, 216, 0.92);
    margin-bottom: 2rem;
    padding-left: 1.2rem;
    border-left: 1px solid rgba(139, 92, 246, 0.35);
}

.stanza:nth-child(2) {
    border-left-color: rgba(13, 148, 136, 0.4);
}

.stanza:nth-child(3) {
    border-left-color: rgba(249, 115, 22, 0.35);
}

/* ============================================================
   CREDITS / FOOTER
   ============================================================ */

.credits-section {
    position: relative;
    margin-top: 6vh;
    background: linear-gradient(180deg, var(--c-cinema-dark) 0%, var(--c-midnight-purple) 100%);
    border-top: 1px solid rgba(139, 92, 246, 0.18);
}

.credits-window {
    position: relative;
    height: 60vh;
    overflow: hidden;
    padding: var(--letterbox-h) 0;
}

.credits-roll {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    padding: 4vh 0;
    gap: 2.6rem;
    animation: credits-roll 30s linear infinite;
}

@keyframes credits-roll {
    from { transform: translateY(100%); }
    to   { transform: translateY(-100%); }
}

.credits-block {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    align-items: center;
}

.credits-title {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(28px, 3.5vw, 42px);
    color: var(--c-silver-screen);
}

.credits-by {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.22em;
    color: var(--c-electric-violet);
    text-transform: uppercase;
}

.credits-role {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--c-dim-gray);
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}

.credits-name {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(20px, 2.2vw, 26px);
    color: var(--c-silver-screen);
    letter-spacing: 0.01em;
}

.credits-tail {
    margin-top: 1.6rem;
    gap: 0.8rem;
}

.credits-mark {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.32em;
    color: var(--c-dark-teal);
}

.credits-domain {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(22px, 2.4vw, 28px);
    color: var(--c-silver-screen);
}

.credits-stamp {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--c-dim-gray);
}

/* ============================================================
   HUD (frame counter, fixed)
   ============================================================ */

.hud-frame-counter {
    position: fixed;
    bottom: calc(var(--letterbox-h) + 14px);
    right: 24px;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    background: rgba(10, 14, 26, 0.65);
    border: 1px solid rgba(139, 92, 246, 0.3);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 8px 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s var(--ease-soft);
}

.hud-frame-counter.is-visible {
    opacity: 0.85;
}

.hud-label {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.22em;
    color: var(--c-dim-gray);
    text-transform: uppercase;
}

.hud-value {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--c-electric-violet);
    letter-spacing: 0.1em;
}

/* ============================================================
   REVEAL HOOKS (scroll-triggered)
   ============================================================ */

.bounce-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-spring), transform 0.8s var(--ease-spring);
}

.bounce-in.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.9s var(--ease-soft), transform 0.9s var(--ease-soft);
}

.fade-up.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    :root { --letterbox-h: 3vh; }

    .scene { padding: 8vh 5vw; }

    .scene-header { padding-left: 1rem; }

    .film-frame {
        width: 280px;
        min-height: 360px;
        padding: 24px 22px;
    }

    .frame-title { font-size: 22px; }

    .hud-frame-counter {
        right: 12px;
        padding: 6px 10px;
    }

    .hud-value { font-size: 12px; }
}

@media (max-width: 480px) {
    .brand-wordmark { font-size: 64px; }
    .scene-title { font-size: 32px; }
    .credits-window { height: 50vh; }
}