/* about_style.css — The Art of Ballroom (cinematic dark rebuild) */

:root {
    --black: #060606;
    --black-2: #0b0b0c;
    --ink: #ecebe7;
    --ink-dim: #9a968c;
    --gold: #d4af37;
    --gold-soft: #e8c86a;
    --line: rgba(236, 235, 231, 0.12);
    --serif: 'Playfair Display', Georgia, serif;
    --sans: 'Inter', 'Segoe UI', Arial, sans-serif;
}

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

html { scroll-behavior: auto; }

html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
    background: var(--black);
    color: var(--ink);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection { background: var(--gold); color: var(--black); }

em { font-style: italic; }

/* ---------- Preloader ---------- */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
}
.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}
.preloader-word {
    font-family: var(--serif);
    font-style: italic;
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--ink);
    letter-spacing: 0.04em;
}
.preloader-count {
    font-size: 0.72rem;
    letter-spacing: 0.5em;
    color: var(--gold);
}
body:not(.is-loading) #preloader { pointer-events: none; }

/* ---------- Ambient layers ---------- */
#dust {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}
.grain {
    position: fixed;
    inset: -50%;
    z-index: 60;
    pointer-events: none;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: grainShift 0.9s steps(4) infinite;
}
@keyframes grainShift {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-2%, 3%); }
    50% { transform: translate(3%, -2%); }
    75% { transform: translate(-3%, -3%); }
    100% { transform: translate(2%, 2%); }
}

/* ---------- Nav ---------- */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px clamp(20px, 4vw, 48px);
    mix-blend-mode: difference;
}
.site-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    opacity: 0.85;
    transition: opacity 0.25s ease;
}
.site-nav a:hover { opacity: 1; }
.nav-links { display: flex; gap: clamp(16px, 3vw, 36px); }
.site-nav a { white-space: nowrap; }

@media (max-width: 640px) {
    .site-nav { padding: 16px 18px; }
    .site-nav a { font-size: 0.6rem; letter-spacing: 0.14em; }
    .nav-links { gap: 14px; }
}

/* ---------- Hero ---------- */
#hero {
    position: relative;
    z-index: 1;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(90px, 14vh, 140px) 20px 60px;
}
.hero-kicker {
    font-size: 0.72rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 26px;
}
.hero-title {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(3rem, 11vw, 9.5rem);
    line-height: 0.98;
    letter-spacing: -0.01em;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .word { display: inline-block; }
.hero-title em {
    display: inline-block;
    font-weight: 700;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--gold-soft);
    text-stroke: 1.5px var(--gold-soft);
}
.hero-sub {
    margin-top: 26px;
    font-size: clamp(0.9rem, 1.6vw, 1.05rem);
    color: var(--ink-dim);
    max-width: 460px;
}

/* Hero video: full-bleed page background */
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}
.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 0%; /* anchor to top so the spotlight beam falls from the page edge */
    display: block;
    will-change: transform;
}
/* Blend the video into the page: edge fades + gentle darkening for text legibility */
.hero-vignette {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom,
            rgba(6, 6, 6, 0.30) 0%, transparent 26%,
            transparent 62%, rgba(6, 6, 6, 0.55) 86%, var(--black) 100%),
        radial-gradient(130% 100% at 50% 35%, transparent 52%, var(--black) 96%);
}
/* Extend the beam glow to the very top of the viewport */
.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 34%;
    background: radial-gradient(46% 100% at 50% 0%, rgba(232, 200, 106, 0.10), transparent 75%);
    pointer-events: none;
}
/* If the loop file is missing, the vignette + a CSS cone still read as a spotlight */
.hero-bg.no-video .hero-video { display: none; }
.hero-bg.no-video .hero-vignette {
    background:
        radial-gradient(42% 58% at 50% 0%, rgba(232, 200, 106, 0.16), transparent 78%),
        linear-gradient(to bottom, rgba(6,6,6,0.2), var(--black) 96%);
}

/* Hero content floats above the film */
#hero > *:not(.hero-bg) { position: relative; z-index: 1; }
.hero-title, .hero-kicker, .hero-sub {
    text-shadow: 0 2px 30px rgba(0, 0, 0, 0.75);
}
.media-fallback {
    position: absolute;
    inset: 0;
    border-radius: 6px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 24px;
    background:
        radial-gradient(120% 100% at 70% 0%, rgba(212, 175, 55, 0.12), transparent 55%),
        linear-gradient(160deg, #101012 0%, #060606 70%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
.dance-media.no-video .media-fallback { opacity: 1; }
.dance-media.no-video .panel-video { display: none; }
.fallback-label {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ink-dim);
}

.hero-scroll-cue {
    margin-top: clamp(36px, 6vh, 60px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 0.66rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--ink-dim);
}
.cue-line {
    width: 1px;
    height: 54px;
    background: linear-gradient(var(--gold), transparent);
    animation: cueDrop 1.8s ease-in-out infinite;
    transform-origin: top;
}
@keyframes cueDrop {
    0% { transform: scaleY(0); }
    45% { transform: scaleY(1); }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Shared section bits ---------- */
section { position: relative; z-index: 1; }

.section-kicker {
    font-size: 0.7rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 18px;
}
.section-title {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(2.2rem, 5.5vw, 4.5rem);
    line-height: 1.02;
    margin-bottom: 28px;
}
.section-title em { color: var(--gold-soft); }

.ghost-word {
    position: absolute;
    top: 8%;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--serif);
    font-weight: 900;
    font-size: clamp(6rem, 22vw, 20rem);
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(236, 235, 231, 0.06);
    text-stroke: 1px rgba(236, 235, 231, 0.06);
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}

/* ---------- Story ---------- */
#story {
    padding: clamp(110px, 18vh, 200px) clamp(20px, 6vw, 80px);
    overflow: hidden;
}
.story-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(36px, 6vw, 90px);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}
.story-text p:not(.section-kicker) {
    color: var(--ink-dim);
    font-size: clamp(0.95rem, 1.5vw, 1.08rem);
    margin-bottom: 16px;
    max-width: 54ch;
}
.story-photo { position: relative; }
.photo-mask {
    overflow: hidden;
    border-radius: 4px;
    border: 1px solid var(--line);
}
.photo-mask img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: center 42%;
    display: block;
    transform: scale(1.08);
    filter: saturate(0.9) contrast(1.05);
    will-change: transform;
}
.story-photo figcaption {
    margin-top: 14px;
    font-size: 0.68rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--ink-dim);
}

/* ---------- The Ten Dances ---------- */
#dances { padding-top: clamp(90px, 15vh, 170px); }
.dances-heading {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 6vw, 80px) clamp(50px, 8vh, 90px);
}
.dances-sub { color: var(--ink-dim); max-width: 52ch; }

.track-wrap { overflow: hidden; }
.track {
    display: flex;
    align-items: stretch;
    will-change: transform;
}

.panel {
    flex: 0 0 auto;
    min-height: 82svh;
    display: flex;
    align-items: center;
    padding: 0 clamp(24px, 4vw, 70px);
}

/* Chapter divider panels */
.panel.chapter {
    width: min(680px, 88vw);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    border-left: 1px solid var(--line);
}
.chapter-index {
    font-family: var(--serif);
    font-style: italic;
    font-size: clamp(3rem, 7vw, 6rem);
    color: transparent;
    -webkit-text-stroke: 1px var(--gold);
    text-stroke: 1px var(--gold);
    line-height: 1;
    margin-bottom: 24px;
}
.chapter-name {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    line-height: 1.02;
    margin-bottom: 22px;
}
.chapter-name em { color: var(--gold-soft); }
.chapter-desc { color: var(--ink-dim); max-width: 42ch; }

/* Dance panels */
.panel.dance {
    width: min(1020px, 94vw);
    gap: clamp(28px, 4vw, 64px);
}
.dance-media {
    position: relative;
    flex: 0 0 clamp(240px, 30vw, 380px);
    aspect-ratio: 9 / 16;
    max-height: 68svh;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--black-2);
}
.panel-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.dance-media .media-fallback { border-radius: 0; }

/* Still photo filling a dance panel */
.dance-media .dance-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Placeholder art — animated conic sheen tinted per dance */
.dance-media.placeholder .ph-art {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(90% 70% at 50% 110%, var(--accent, #d4af37) 0%, transparent 60%),
        linear-gradient(170deg, #131315 0%, #08080a 65%);
    opacity: 0.55;
}
.dance-media.placeholder .ph-art::after {
    content: "";
    position: absolute;
    inset: -60%;
    background: conic-gradient(from 0deg, transparent 0 84%, rgba(236, 235, 231, 0.07) 92%, transparent 100%);
    animation: phSpin 9s linear infinite;
}
@keyframes phSpin { to { transform: rotate(360deg); } }
.dance-media.placeholder .ph-note {
    position: absolute;
    left: 18px;
    bottom: 16px;
    font-size: 0.62rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--ink-dim);
}

.dance-info { max-width: 460px; }
.dance-num {
    display: block;
    font-family: var(--serif);
    font-style: italic;
    font-size: 1rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    margin-bottom: 10px;
}
.dance-name {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(2.4rem, 5.5vw, 4.6rem);
    line-height: 0.98;
    margin-bottom: 16px;
}
.dance-meta {
    font-size: 0.7rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gold-soft);
    margin-bottom: 16px;
}
.dance-desc { color: var(--ink-dim); font-size: 0.98rem; }

.panel.dance.is-featured .dance-media {
    aspect-ratio: 9 / 16;
    flex-basis: clamp(300px, 36vw, 460px);
    box-shadow: 0 30px 80px -30px rgba(212, 175, 55, 0.25);
}

/* Vertical fallback (mobile / no-pin) */
@media (max-width: 899px) {
    .track { flex-direction: column; }
    .panel { width: 100% !important; min-height: auto; padding: 60px clamp(20px, 6vw, 48px); }
    .panel.chapter { border-left: none; border-top: 1px solid var(--line); }
    .panel.dance { flex-direction: column; align-items: flex-start; }
    .dance-media { flex-basis: auto; width: min(320px, 78vw); }
    .panel.dance.is-featured .dance-media { width: 100%; }
}

/* ---------- Formation ---------- */
#formation {
    padding: clamp(110px, 18vh, 200px) clamp(20px, 6vw, 80px);
    overflow: hidden;
}
.formation-inner { max-width: 900px; margin: 0 auto; position: relative; }
.formation-copy { color: var(--ink-dim); max-width: 62ch; margin-bottom: 36px; }
.video-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 40px 100px -40px rgba(212, 175, 55, 0.18);
}
.video-frame iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---------- Footer ---------- */
.page-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 40px 20px 60px;
    border-top: 1px solid var(--line);
}
.footer-big {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 600;
    font-size: clamp(2rem, 6vw, 4rem);
    color: transparent;
    -webkit-text-stroke: 1px rgba(212, 175, 55, 0.5);
    text-stroke: 1px rgba(212, 175, 55, 0.5);
    margin-bottom: 22px;
}
.page-footer p:last-child { font-size: 0.8rem; color: var(--ink-dim); }
.page-footer a { color: var(--gold-soft); text-decoration: none; }
.page-footer a:hover { text-decoration: underline; }

/* ---------- Reveal primitives (JS adds .in) ---------- */
.reveal-line { opacity: 0; transform: translateY(24px); }
body.no-js .reveal-line { opacity: 1; transform: none; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    .grain, .cue-line, .ph-art::after { animation: none !important; }
    .reveal-line { opacity: 1 !important; transform: none !important; }
}