/* ==========================================================================
   The Girl Who Fished for Stars — Rising Chapter
   Still photographic background, all motion in the interface.
   ========================================================================== */

:root {
  --ink: #05070f;
  --paper: #eef2fb;
  --muted: rgba(238, 242, 251, 0.62);
  --faint: rgba(238, 242, 251, 0.34);
  --star: #8fd2ff;
  --star-warm: #f4c98a;

  --glass-fill: rgba(232, 240, 255, 0.07);
  --glass-fill-strong: rgba(232, 240, 255, 0.12);
  --glass-edge: rgba(232, 240, 255, 0.2);
  --glass-blur: blur(20px) saturate(140%);
  --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.85);

  /* Entrances are slower than exits and rise; exits fall. */
  --in: 620ms;
  --out: 380ms;
  --ease-in-out: cubic-bezier(0.22, 0.61, 0.24, 1);
  --ease-overshoot: cubic-bezier(0.18, 0.84, 0.28, 1.06);
  --ease-exit: cubic-bezier(0.55, 0, 0.85, 0.32);

  --stagger: 55ms;
  --rise: 18px;

  --bar-h: 76px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font: inherit; color: inherit; }

.a11y-live {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Background. Two layers cross-fade on part change; nothing else moves.
   -------------------------------------------------------------------------- */

.backdrop { position: fixed; inset: 0; z-index: 0; background: var(--ink); }

.backdrop__layer {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 760ms var(--ease-in-out);
}

.backdrop__layer.is-active { opacity: 1; }

/* Keeps the corners from competing with the type. */
.backdrop__vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(130% 95% at 62% 42%, transparent 38%, rgba(3, 5, 12, 0.62) 100%),
    linear-gradient(to top, rgba(3, 5, 12, 0.78) 0%, transparent 42%),
    linear-gradient(to right, rgba(3, 5, 12, 0.55) 0%, transparent 46%);
}

/* Lifted during the chapter title sequence, then cleared for listening. */
.backdrop__scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: rgba(3, 5, 12, 0.66);
  opacity: 0;
  transition: opacity 900ms var(--ease-in-out);
}

.backdrop__scrim.is-up { opacity: 1; }

/* --------------------------------------------------------------------------
   Shared type
   -------------------------------------------------------------------------- */

.eyebrow {
  margin: 0;
  font-size: 0.688rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--faint);
}

/* Lines mask upward from behind an edge. */
.line { display: block; overflow: hidden; }

.line > span {
  display: block;
  transform: translateY(105%);
  transition: transform 780ms var(--ease-overshoot);
}

.is-revealed .line > span { transform: translateY(0); }

/* --------------------------------------------------------------------------
   Intro
   -------------------------------------------------------------------------- */

.intro {
  position: fixed;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2rem;
  padding: clamp(1.75rem, 5vw, 5rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.intro__inner { max-width: 44rem; }

/* The opening photo is bright behind this line, so it needs its own lift. */
.intro .eyebrow {
  color: rgba(238, 242, 251, 0.78);
  text-shadow: 0 1px 14px rgba(3, 5, 12, 0.95);
}

.intro__title {
  margin: 0.75rem 0 0;
  font-size: clamp(2.6rem, 8.4vw, 6rem);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.7);
}

.intro__blurb {
  max-width: 34rem;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.5vw, 1.06rem);
  text-shadow: 0 1px 20px rgba(0, 0, 0, 0.8);
}

.intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.intro__resume {
  margin: 1.1rem 0 0;
  font-size: 0.83rem;
  color: var(--faint);
}

.intro__hint {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(238, 242, 251, 0.38);
  text-shadow: 0 1px 14px rgba(3, 5, 12, 0.95);
}

/* Staggered arrival: each element rises as it fades in. */
[data-anim] {
  opacity: 0;
  transform: translateY(var(--rise));
  transition:
    opacity var(--in) var(--ease-in-out),
    transform var(--in) var(--ease-overshoot);
}

body.is-ready [data-anim] { opacity: 1; transform: none; }

[data-anim="1"] { transition-delay: calc(var(--stagger) * 1); }
[data-anim="2"] { transition-delay: calc(var(--stagger) * 2); }
[data-anim="3"] { transition-delay: calc(var(--stagger) * 3); }
[data-anim="4"] { transition-delay: calc(var(--stagger) * 4); }
[data-anim="5"] { transition-delay: calc(var(--stagger) * 5); }
[data-anim="6"] { transition-delay: calc(var(--stagger) * 7); }

/* Exits are faster and fall rather than rise. */
body[data-state="playing"] .intro,
body[data-state="chapter"] .intro {
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition:
    opacity var(--out) var(--ease-exit),
    transform var(--out) var(--ease-exit);
}

/* --------------------------------------------------------------------------
   Chapter title sequence
   -------------------------------------------------------------------------- */

.chapter {
  position: fixed;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.75rem, 5vw, 6rem);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--out) var(--ease-exit);
}

.chapter.is-showing { opacity: 1; transition: opacity 500ms var(--ease-in-out); }

.chapter__number {
  margin: 0 0 0.9rem;
  font-size: clamp(0.72rem, 1.4vw, 0.85rem);
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--star);
  opacity: 0;
  transform: scale(0.82);
  transition:
    opacity 620ms var(--ease-in-out),
    transform 720ms var(--ease-overshoot);
}

.chapter.is-showing .chapter__number { opacity: 1; transform: scale(1); }

.chapter__title {
  margin: 0;
  font-size: clamp(2.8rem, 9vw, 7rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
  text-shadow: 0 2px 50px rgba(0, 0, 0, 0.8);
}

.chapter__line {
  max-width: 30rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(0.92rem, 1.5vw, 1.02rem);
  font-style: italic;
  opacity: 0;
  transform: translateY(var(--rise));
  transition:
    opacity var(--in) var(--ease-in-out) 260ms,
    transform var(--in) var(--ease-overshoot) 260ms;
}

.chapter.is-showing .chapter__line { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    transform 260ms var(--ease-overshoot),
    background-color 260ms var(--ease-in-out),
    border-color 260ms var(--ease-in-out),
    box-shadow 260ms var(--ease-in-out);
}

.btn:hover { background: var(--glass-fill-strong); border-color: rgba(232, 240, 255, 0.36); }
.btn:active { transform: scale(0.96); }

/* The one opaque element on the page. */
.btn--solid {
  background: var(--paper);
  border-color: transparent;
  color: #070b15;
  box-shadow: 0 10px 40px -12px rgba(143, 210, 255, 0.5);
}

.btn--solid:hover {
  background: #fff;
  box-shadow: 0 14px 46px -12px rgba(143, 210, 255, 0.7);
}

.btn--solid .icon { fill: #070b15; }

.btn--ghost { color: var(--muted); }
.btn--ghost:hover { color: var(--paper); }

.iconbtn {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    transform 240ms var(--ease-overshoot),
    background-color 240ms var(--ease-in-out),
    border-color 240ms var(--ease-in-out),
    color 240ms var(--ease-in-out);
}

.iconbtn:hover {
  color: var(--paper);
  background: var(--glass-fill-strong);
  border-color: var(--glass-edge);
}

.iconbtn:active { transform: scale(0.92); }

.iconbtn--primary {
  width: 52px;
  height: 52px;
  color: #070b15;
  background: var(--paper);
  box-shadow: 0 8px 30px -10px rgba(143, 210, 255, 0.6);
}

.iconbtn--primary:hover { background: #fff; color: #070b15; }

.icon { width: 21px; height: 21px; fill: currentColor; }
.iconbtn--primary .icon { width: 23px; height: 23px; }

.icon--pause { display: none; }
body.is-playing .icon--play { display: none; }
body.is-playing .icon--pause { display: block; }

:focus-visible {
  outline: 2px solid var(--star);
  outline-offset: 3px;
  border-radius: 8px;
}

/* --------------------------------------------------------------------------
   Player
   -------------------------------------------------------------------------- */

.player {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 5;
  padding: clamp(0.75rem, 2vw, 1.25rem);
  padding-bottom: max(clamp(0.75rem, 2vw, 1.25rem), env(safe-area-inset-bottom));
  transition:
    opacity var(--in) var(--ease-in-out),
    transform var(--in) var(--ease-overshoot);
}

.player[hidden] { display: none; }

/* The chapter sequence performs alone; the player arrives once it clears. */
body[data-state="intro"] .player,
body[data-state="chapter"] .player {
  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;
}

/* Auto-hide only once the listener has actually used the player. */
body.controls-hidden .player {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity var(--out) var(--ease-exit),
    transform var(--out) var(--ease-exit);
}

.player__bar {
  display: flex;
  align-items: center;
  gap: clamp(0.65rem, 1.6vw, 1.15rem);
  max-width: 68rem;
  margin: 0 auto;
  padding: 0.7rem 0.9rem;
  min-height: var(--bar-h);
  border-radius: 20px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow);
}

.player__meta { min-width: 8.5rem; }

.player__part {
  margin: 0;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--star);
}

.player__title {
  margin: 0.15rem 0 0;
  font-size: 0.95rem;
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player__seek { position: relative; flex: 1; min-width: 4rem; height: 24px; }

.seek {
  position: absolute;
  inset: 0;
  width: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.seek__track {
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 3px;
  transform: translateY(-50%);
  border-radius: 999px;
  background: rgba(232, 240, 255, 0.16);
  overflow: hidden;
  pointer-events: none;
}

.seek__fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(143, 210, 255, 0.75), var(--star));
  transition: width 220ms linear;
}

.player__seek:hover .seek__track { height: 5px; }
.seek__track { transition: height 200ms var(--ease-in-out); }

.player__time {
  margin: 0;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--faint);
  white-space: nowrap;
}

.player__time .sep { opacity: 0.4; }

.player__nav { display: flex; align-items: center; gap: 0.2rem; }

/* --------------------------------------------------------------------------
   Sheet
   -------------------------------------------------------------------------- */

.sheet { position: fixed; inset: 0; z-index: 6; }
.sheet[hidden] { display: none; }

.sheet__scrim {
  position: absolute;
  inset: 0;
  background: rgba(3, 5, 12, 0.6);
  opacity: 0;
  transition: opacity var(--out) var(--ease-in-out);
}

.sheet.is-open .sheet__scrim { opacity: 1; }

.sheet__panel {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: min(44rem, 100%);
  max-height: min(74vh, 40rem);
  overflow-y: auto;
  padding: 1.6rem clamp(1.1rem, 3vw, 2rem);
  padding-bottom: calc(2.25rem + env(safe-area-inset-bottom));
  border-radius: 24px 24px 0 0;
  border: 1px solid var(--glass-edge);
  border-bottom: none;
  background: rgba(10, 14, 26, 0.72);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow);
  transform: translate(-50%, 100%);
  transition: transform 520ms var(--ease-overshoot);
}

.sheet.is-open .sheet__panel { transform: translate(-50%, 0); }

.sheet__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.sheet__title {
  margin: 0.4rem 0 0;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: -0.015em;
}

.parts { margin: 0; padding: 0; list-style: none; counter-reset: part; }

.part {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition:
    transform 240ms var(--ease-overshoot),
    background-color 240ms var(--ease-in-out),
    border-color 240ms var(--ease-in-out);
}

.part:hover { background: var(--glass-fill); border-color: var(--glass-edge); }
.part:active { transform: scale(0.99); }

.part.is-current {
  background: var(--glass-fill-strong);
  border-color: rgba(143, 210, 255, 0.34);
}

.part__num {
  flex: none;
  width: 1.6rem;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--faint);
}

.part.is-current .part__num { color: var(--star); }

.part__body { flex: 1; min-width: 0; }

.part__title { display: block; font-size: 1rem; }

.part__desc {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.83rem;
  color: var(--faint);
}

.part__state {
  flex: none;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.part.is-current .part__state { color: var(--star); }

/* --------------------------------------------------------------------------
   Missing-audio notice
   -------------------------------------------------------------------------- */

.notice {
  position: fixed;
  left: 50%;
  bottom: calc(var(--bar-h) + 2.2rem);
  z-index: 5;
  transform: translate(-50%, 10px);
  max-width: min(30rem, calc(100% - 2rem));
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(244, 201, 138, 0.3);
  background: rgba(20, 15, 8, 0.7);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: var(--star-warm);
  font-size: 0.8rem;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--in) var(--ease-in-out),
    transform var(--in) var(--ease-overshoot);
}

.notice.is-showing { opacity: 1; transform: translate(-50%, 0); }

/* --------------------------------------------------------------------------
   Narrow screens
   -------------------------------------------------------------------------- */

@media (max-width: 40rem) {
  .player__meta { display: none; }
  .player__time { font-size: 0.72rem; }
  .player__bar { gap: 0.55rem; padding: 0.6rem 0.7rem; }
  .iconbtn { width: 38px; height: 38px; }
  .iconbtn--primary { width: 48px; height: 48px; }
  .intro { justify-content: flex-end; }
}

/* Blurred surfaces are expensive; drop to a flat fill where unsupported. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .player__bar,
  .btn,
  .notice { background: rgba(10, 14, 26, 0.86); }
}

/* --------------------------------------------------------------------------
   Reduced motion: the photo stays, the motion stops.
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 160ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

  [data-anim],
  .chapter__line,
  .chapter__number { transform: none !important; }

  .line > span { transform: none !important; }

  .sheet__panel { transition: opacity 160ms linear; }
  .sheet__panel { transform: translate(-50%, 0); opacity: 0; }
  .sheet.is-open .sheet__panel { opacity: 1; }

  body[data-state="intro"] .player,
  body.controls-hidden .player { transform: none; }
}