/* =========================================================================
   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;
}

/* =========================================================================
   TABLET TIER — @container device (min-width: 700px)
   iPad-Notes split view: a sidebar list (the one real, pinned note as a
   selected row) beside a comfortable reading column. notes.js always builds
   the sidebar markup (see mount()); on phone it stays display:none and costs
   nothing. Phone stays pixel-identical below the threshold — this block only
   adds rules.
   ========================================================================= */
.notes-sidebar { display: none; }

@container device (min-width: 700px) {
  .app-screen[data-app="notes"] .app-body {
    flex-direction: row;
    align-items: stretch;
    justify-content: flex-start;
    padding: 0;
    gap: 0;
    overflow: hidden;
  }

  /* ---- sidebar: the notes list ------------------------------------------ */
  .notes-sidebar {
    display: block;
    flex: 0 0 18rem;
    min-width: 0;
    height: 100%;
    overflow-y: auto;
    scrollbar-width: none;
    padding: 1rem 0.6rem;
    border-right: 1px solid var(--notes-line);
    background: color-mix(in oklch, var(--notes-surface) 94%, var(--notes-ink));
  }
  .notes-sidebar::-webkit-scrollbar { display: none; }

  .notes-sidebar__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
  }

  .notes-row {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    padding: 0.65rem 0.7rem;
    border-radius: 0.65rem;
    cursor: default;
  }
  .notes-row--selected {
    background: var(--notes-surface-card);
    box-shadow: 0 0.1rem 0.3rem oklch(0.5 0.08 75 / 0.1);
  }

  .notes-row__pin {
    flex: 0 0 auto;
    margin-top: 0.2rem;
    color: var(--notes-accent);
    display: inline-flex;
  }

  .notes-row__main {
    min-width: 0;
    flex: 1 1 auto;
  }

  .notes-row__top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem;
  }
  .notes-row__title {
    font-family: var(--font-ui);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--notes-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .notes-row__date {
    flex: 0 0 auto;
    font-family: var(--font-label);
    font-size: 0.68rem;
    letter-spacing: 0.02em;
    text-transform: lowercase;
    color: var(--notes-muted);
  }

  .notes-row__snippet {
    margin: 0.15rem 0 0;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    line-height: 1.35;
    color: var(--notes-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* ---- reading pane: comfortable column, centered in remaining space ---
     .app-body owns overflow:hidden at this tier (the sidebar scrolls on its
     own), so the note-card's wrapping flex box is the one that scrolls the
     reading pane vertically. */
  .app-screen[data-app="notes"] .note-card {
    flex: 1 1 auto;
    max-width: 36rem;
    height: 100%;
    margin: 0 auto;
    padding-top: 2.2rem;
    overflow-y: auto;
    scrollbar-width: none;
    box-sizing: border-box;
  }
  .app-screen[data-app="notes"] .note-card::-webkit-scrollbar { display: none; }
}

/* Android tonal sidebar variant */
body[data-os="android"] .app-screen[data-app="notes"] .notes-sidebar {
  background: oklch(0.93 0.035 94);
}
body[data-os="android"] .app-screen[data-app="notes"] .notes-row--selected {
  background: oklch(0.9 0.045 92);
  box-shadow: none;
}

/* ---- 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;
  }
}