/* =========================================================================
   GianOS — Notes app styles (the completion reward)
   Committed warm paper-yellow palette (this app only). One pinned note on a
   sticky-note surface. Scoped under .app-screen[data-app=notes] and
   body[data-app=notes] for the statusbar override + per-OS app-head skin.

   Tokens are fixed — they do not follow --seed (Notes' art direction is
   deliberately immune to the theme toy, like the other apps).

   Contrast: --notes-ink on --notes-surface ≥ 4.5:1. All OKLCH, no hex.

   ARIA: the note is an <article>; title is an <h2>; lines are paragraphs.
   ========================================================================= */

/* ---- warm statusbar override when Notes is active ----------------------- */
body[data-app="notes"] {
  --statusbar-ink: oklch(0.32 0.05 90);
  --statusbar-bg:  oklch(0.95 0.03 95 / 0.9);
}

/* ---- scoped palette ----------------------------------------------------- */
.app-screen[data-app="notes"] {
  --notes-surface:      oklch(0.95 0.03 95);    /* paper yellow */
  --notes-surface-card: oklch(0.975 0.035 96);  /* brighter note lift */
  --notes-accent:       oklch(0.62 0.11 75);    /* amber — pin, meta */
  --notes-ink:          oklch(0.27 0.03 80);    /* primary text */
  --notes-muted:        oklch(0.46 0.04 82);    /* secondary / meta */
  --notes-line:         oklch(0.86 0.03 92);    /* hairline */
}

.app-screen[data-app="notes"] .app-body {
  background: var(--notes-surface);
  padding: 1.1rem;
  gap: 0;
  align-items: center;
  justify-content: flex-start;
}

/* ---- app-head: warm paper glass ----------------------------------------- */
.app-screen[data-app="notes"] .app-head {
  background: color-mix(in oklch, var(--notes-surface) 88%, transparent);
  border-bottom-color: oklch(0.82 0.04 92 / 0.6);
}
.app-screen[data-app="notes"] .app-head__title { color: var(--notes-ink); }
.app-screen[data-app="notes"] .app-head__back  { color: var(--notes-accent); }

/* Android tonal head variant */
body[data-os="android"] .app-screen[data-app="notes"] .app-head {
  background: oklch(0.93 0.035 94);
  backdrop-filter: none;
}

/* =========================================================================
   PINNED NOTE CARD
   ========================================================================= */
.note-card {
  width: 100%;
  max-width: 23rem;
  margin: 0.6rem auto 0;
  padding: 1.3rem 1.3rem 1.5rem;
  background: var(--notes-surface-card);
  border-radius: 0.5rem;   /* sticky-note: gently rounded */
  box-shadow:
    0 0.1rem 0.2rem oklch(0.62 0.11 75 / 0.1),
    0 0.5rem 1.4rem -0.4rem oklch(0.5 0.08 75 / 0.22);
}

/* iOS: a touch more lift + inset highlight */
body[data-os="ios"] .app-screen[data-app="notes"] .note-card {
  border-radius: 0.7rem;
  box-shadow:
    inset 0 1px 0 oklch(1 0 0 / 0.5),
    0 0.5rem 1.5rem -0.4rem oklch(0.5 0.08 75 / 0.26);
}

/* Android M3 tonal card */
body[data-os="android"] .app-screen[data-app="notes"] .note-card {
  border-radius: 0.85rem;
  background: oklch(0.93 0.035 94);
  box-shadow: none;
}

.note-card__head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
}
.note-card__pin { color: var(--notes-accent); display: inline-flex; }
.note-card__meta {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--notes-muted);
}

.note-card__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--notes-ink);
}

.note-card__line {
  margin: 0 0 0.85rem;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--notes-ink);
}

.note-card__sign {
  margin: 1.1rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--notes-line);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--notes-muted);
}

/* =========================================================================
   POP ANIMATION — reuses the global .pop / .in idiom (opacity + translateY).
   ========================================================================= */
.note-card__head.pop,
.note-card__title.pop,
.note-card__line.pop,
.note-card__sign.pop {
  opacity: 0;
  transform: translateY(0.6rem);
}
.note-card__head.pop.in,
.note-card__title.pop.in,
.note-card__line.pop.in,
.note-card__sign.pop.in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  .note-card__head.pop,  .note-card__head.pop.in,
  .note-card__title.pop, .note-card__title.pop.in,
  .note-card__line.pop,  .note-card__line.pop.in,
  .note-card__sign.pop,  .note-card__sign.pop.in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}