/* Kadife Kına intro (#414, Mina). The closed velvet curtain (two halves) is drawn aside and gathered into the
   tassels, the lanterns light up, then the name appears between the curtains.
   Phases: idle → opening → climax → done. Every animation starts when the phase leaves idle, so its timeline is
   "ms since tap" (§4.1 (6)); climax = 0.7 × 2600 = 1820 ms, the name is fully visible by then.
   Layer (§4.1 (5)): --1 lantern glow. The tassels are painted in the scene and show as the curtain gathers. Reduced motion: opacity only. */

[data-theme="henna-velvet"] .inv-intro {
  display: grid;
  align-content: center;
  justify-items: center;
  overflow: hidden;
  background: var(--inv-bg);
}
[data-theme="henna-velvet"] .inv-intro__scene {
  position: absolute;
  inset: 0;
  background: var(--inv-art-scene) 50% 50% / cover no-repeat, var(--inv-bg);
  opacity: .6;
}
/* closed curtain halves */
[data-theme="henna-velvet"] .inv-intro__scene::before,
[data-theme="henna-velvet"] .inv-intro__scene::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.5%;
  background: url("art/curtain-left.svg") 0 0 / 100% 100% no-repeat;
}
[data-theme="henna-velvet"] .inv-intro__scene::before { left: 0; transform-origin: 0 50%; }
[data-theme="henna-velvet"] .inv-intro__scene::after {
  right: 0;
  transform-origin: 100% 50%;
  background-image: url("art/curtain-right.svg");
}
[data-theme="henna-velvet"] .inv-intro__layer--1 {
  background: url("art/glow.svg") 50% 50% / cover no-repeat;
  opacity: 0;
}
[data-theme="henna-velvet"] .inv-intro__names {
  position: relative;
  max-width: 16rem;
  margin: 13svh 0 0;
  padding-inline: .15em;
  font: 400 clamp(4rem, 3.1rem + 3.6vw, 6.25rem)/1.1 var(--inv-font-script);
  text-align: center;
  background: linear-gradient(100deg, var(--inv-ornament) 0%, var(--inv-accent) 40%, var(--inv-primary) 62%, var(--inv-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0;
}
[data-theme="henna-velvet"] .inv-intro__date {
  position: relative;
  margin: var(--space-3) 0 0;
  font: 400 .875rem/1.4 var(--inv-font-numeric); /* §4.1/12 */
  font-variant-numeric: lining-nums;
  letter-spacing: .1em;
  text-transform: var(--inv-display-transform);
  color: var(--inv-text);
  opacity: 0;
}

/* ---- opening (timeline = ms since tap, total 2600) ---- */
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene { animation: hv-light-up 1000ms var(--ease-out) 300ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene::before { animation: hv-gather 1700ms var(--inv-motion-ease-open) 150ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene::after { animation: hv-gather 1700ms var(--inv-motion-ease-open) 150ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__layer--1 { animation: hv-flicker 1000ms linear 300ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__names { animation: hv-name-in var(--inv-motion-name-in) var(--ease-out) 900ms both; } /* ends 1800 < 1820 */
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__date { animation: hv-rise 700ms var(--ease-out) 1100ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__tap { animation: hv-fade-out 250ms linear both; }

@keyframes hv-light-up { from { opacity: .6; } to { opacity: 1; } }
/* drawn aside: the half squeezes toward its outer edge (gathering), lifts a little, then hands over to the
   gathered curtain painted in the scene */
@keyframes hv-gather {
  0% { transform: scaleX(1); opacity: 1; }
  70% { transform: scaleX(.34) translateY(-1%); opacity: 1; }
  100% { transform: scaleX(.3) translateY(-1%); opacity: 0; }
}
@keyframes hv-flicker {
  0% { opacity: 0; }
  20% { opacity: .7; }
  28% { opacity: .35; }
  45% { opacity: .9; }
  55% { opacity: .6; }
  100% { opacity: 1; }
}
@keyframes hv-tassel { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
@keyframes hv-name-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@keyframes hv-rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes hv-fade-out { to { opacity: 0; } }
@keyframes hv-fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ---- reduced motion: ≤ 800 ms opacity only — curtain → lanterns + name → page ---- */
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__scene { animation: none; opacity: 1; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__scene::before,
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__scene::after { animation: hv-fade-out 200ms linear both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__layer--1 { animation: hv-fade-in 200ms linear both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__names { animation: hv-fade-in 200ms linear 50ms both; }
[data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro--reduce .inv-intro__date { animation: hv-fade-in 200ms linear 50ms both; }
@media (prefers-reduced-motion: reduce) {
  [data-theme="henna-velvet"] .inv-intro__scene { opacity: 1; }
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene { animation: none; }
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene::before,
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__scene::after { animation: hv-fade-out 300ms linear both; }
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__layer--1 { animation: hv-fade-in 300ms linear 100ms both; }
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__names { animation: hv-fade-in 300ms linear 250ms both; }
  [data-theme="henna-velvet"]:not([data-intro-phase="idle"]) .inv-intro__date { animation: hv-fade-in 250ms linear 400ms both; }
}

/* Görev 1527: açılış tarihi kapak günüyle aynı ölçüde (devir sırasında isim yerinden oynamaz). */
[data-theme="henna-velvet"] .inv-intro__date { font-size: var(--inv-text-date); line-height: var(--inv-lh-date); letter-spacing: .03em; }
@media (min-width: 64rem) { [data-theme="henna-velvet"] .inv-intro__date { white-space: nowrap; } } /* 1440'ta kapak günü tek satır; açılış da tek satır, devirde isim kaymaz */