/*
 * drawer.css — default neutral theme for the SDK drawer mode (docs/04 §4.7.4).
 * docs/plans/2026-07-07-sdk-drawer-mode.md (Part A).
 *
 * Additive only: every selector below targets NEW `.cmt-drawer-*` class hooks.
 * No existing `.cmt-*` selector (comments.css / post-widget markup) is touched.
 *
 * Deliberately low-opinion, like comments.css: sites re-theme via the 8 CSS
 * variables below (see the plan doc) or by overriding the class hooks directly.
 * The persimmon/marigold palette used by the 10i.jp mockup is NOT here — that
 * is applied by the consuming site's own stylesheet (Part B), never by this
 * default.
 */

.cmt-drawer {
  --cmt-drawer-accent: #2563eb;
  --cmt-drawer-tab-bg: #1f2937;
  --cmt-drawer-tab-fg: #ffffff;
  --cmt-drawer-sheet-bg: #ffffff;
  --cmt-drawer-fg: #1a1a1a;
  --cmt-drawer-scrim: rgba(15, 23, 42, 0.45);
  --cmt-drawer-radius: 16px;
  --cmt-drawer-shadow: 0 -10px 32px rgba(15, 23, 42, 0.22);

  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  .cmt-drawer {
    --cmt-drawer-tab-bg: #f3f4f6;
    --cmt-drawer-tab-fg: #111827;
    --cmt-drawer-sheet-bg: #1f2937;
    --cmt-drawer-fg: #f3f4f6;
    --cmt-drawer-scrim: rgba(0, 0, 0, 0.6);
    --cmt-drawer-shadow: 0 -10px 32px rgba(0, 0, 0, 0.5);
  }
}
:root[data-theme="dark"] .cmt-drawer {
  --cmt-drawer-tab-bg: #f3f4f6;
  --cmt-drawer-tab-fg: #111827;
  --cmt-drawer-sheet-bg: #1f2937;
  --cmt-drawer-fg: #f3f4f6;
  --cmt-drawer-scrim: rgba(0, 0, 0, 0.6);
  --cmt-drawer-shadow: 0 -10px 32px rgba(0, 0, 0, 0.5);
}
:root[data-theme="light"] .cmt-drawer {
  --cmt-drawer-tab-bg: #1f2937;
  --cmt-drawer-tab-fg: #ffffff;
  --cmt-drawer-sheet-bg: #ffffff;
  --cmt-drawer-fg: #1a1a1a;
  --cmt-drawer-scrim: rgba(15, 23, 42, 0.45);
  --cmt-drawer-shadow: 0 -10px 32px rgba(15, 23, 42, 0.22);
}

/* ---------- inline entry bar (sits where the reader root used to be) ---------- */
.cmt-drawer-entry {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  min-height: 48px;
  margin: 1rem 0;
  padding: 0.7rem 0.9rem;
  border: 1px solid color-mix(in srgb, var(--cmt-drawer-accent) 35%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--cmt-drawer-accent) 8%, transparent);
  color: var(--cmt-drawer-fg);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.cmt-drawer-entry-icon {
  font-size: 1.1rem;
  line-height: 1;
}
.cmt-drawer-entry-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.cmt-drawer-entry-label {
  font-weight: 600;
}
.cmt-drawer-entry-sub {
  font-size: 0.78rem;
  opacity: 0.7;
}
.cmt-drawer-entry-chevron {
  margin-left: auto;
  color: var(--cmt-drawer-accent);
}

/* ---------- shared count badge ---------- */
.cmt-drawer-count {
  display: none;
  font-variant-numeric: tabular-nums;
  background: var(--cmt-drawer-accent);
  color: #fff;
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
  font-size: 0.78rem;
}
.cmt-drawer[data-state="active"] .cmt-drawer-count {
  display: inline-flex;
  align-items: center;
}

/* ---------- empty-state CTA (inside the sheet body) ---------- */
.cmt-drawer-empty {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.2rem 1.2rem 1rem;
  color: var(--cmt-drawer-fg);
  opacity: 0.75;
}
.cmt-drawer[data-state="empty"] .cmt-drawer-empty {
  display: flex;
}
.cmt-drawer-empty-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
.cmt-drawer-empty-text {
  margin: 0;
}

/* ---------- fixed tab (fusen / bubble) ---------- */
.cmt-drawer-tab {
  position: fixed;
  z-index: 2147483000;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  border: 0;
  cursor: pointer;
  background: var(--cmt-drawer-tab-bg);
  color: var(--cmt-drawer-tab-fg);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  font: inherit;
  min-height: 44px;
}
/* fusen (default): a vertical pill hugging the right edge, mid-viewport. */
.cmt-drawer[data-affordance="fusen"] .cmt-drawer-tab {
  top: 40%;
  right: 0;
  flex-direction: column;
  padding: 0.65rem 0.5rem;
  padding-right: calc(0.5rem + env(safe-area-inset-right, 0px));
  border-radius: 12px 0 0 12px;
  writing-mode: vertical-rl;
  text-orientation: upright;
}
.cmt-drawer[data-affordance="fusen"] .cmt-drawer-tab-icon,
.cmt-drawer[data-affordance="fusen"] .cmt-drawer-tab-label {
  writing-mode: horizontal-tb;
}
/* bubble: a round chat button, bottom-right. */
.cmt-drawer[data-affordance="bubble"] .cmt-drawer-tab {
  bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  right: calc(1rem + env(safe-area-inset-right, 0px));
  width: 56px;
  height: 56px;
  border-radius: 50%;
  flex-direction: column;
  justify-content: center;
  padding: 0;
}
.cmt-drawer[data-affordance="bubble"] .cmt-drawer-tab-label {
  display: none; /* icon + count badge only, to fit the circle */
}
.cmt-drawer[data-affordance="bubble"] .cmt-drawer-count {
  position: absolute;
  top: -4px;
  right: -4px;
}

/* ---------- scrim ---------- */
.cmt-drawer-scrim {
  position: fixed;
  inset: 0;
  z-index: 2147483001;
  background: var(--cmt-drawer-scrim);
  opacity: 0;
  /* Interactivity is tied to `.open`, not the `hidden` attribute: closeInstance
     drops `.open` immediately but only sets hidden after the transition (or a
     400ms fallback). Without this, a reduced-motion close would leave the scrim
     catching taps for up to 400ms (a dead-tap window). `.open` gating closes
     that window while still catching taps to dismiss the sheet while open. */
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.cmt-drawer.open .cmt-drawer-scrim {
  opacity: 1;
  pointer-events: auto;
}
/* Defensive parity with the sheet/form-wrap guards: a consuming site's
   `.cmt-drawer-scrim{display:block}` override must not reintroduce a persistent
   scrim once drawer.js has set the `hidden` attribute. */
.cmt-drawer-scrim[hidden] {
  display: none;
}

/* ---------- bottom sheet ---------- */
.cmt-drawer-sheet {
  position: fixed;
  z-index: 2147483002;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  background: var(--cmt-drawer-sheet-bg);
  color: var(--cmt-drawer-fg);
  border-radius: var(--cmt-drawer-radius) var(--cmt-drawer-radius) 0 0;
  box-shadow: var(--cmt-drawer-shadow);
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
/* The `display:flex` above is an author-origin declaration, which (by CSS
   cascade ORIGIN rules, independent of specificity) wins over the UA
   stylesheet's `[hidden]{display:none}` — so without this override the
   `hidden` attribute would stop affecting layout/paint while still being off
   -screen via transform, which is a real (if translated) box and therefore
   NOT "hidden" to assistive tech or to a11y/visibility queries. */
.cmt-drawer-sheet[hidden] {
  display: none;
}
.cmt-drawer.open .cmt-drawer-sheet {
  transform: translateY(0);
}
.cmt-drawer-handle {
  width: 38px;
  height: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--cmt-drawer-fg) 25%, transparent);
  margin: 0.6rem auto 0.2rem;
  flex: 0 0 auto;
}
.cmt-drawer-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem 0.7rem;
  border-bottom: 1px solid color-mix(in srgb, var(--cmt-drawer-fg) 12%, transparent);
  flex: 0 0 auto;
}
.cmt-drawer-title {
  margin: 0;
  font-size: 1.02rem;
}
.cmt-drawer-close {
  margin-left: auto;
  width: 36px;
  height: 36px;
  min-height: 44px;
  min-width: 44px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 1.2rem;
  cursor: pointer;
}
.cmt-drawer-close:hover {
  background: color-mix(in srgb, var(--cmt-drawer-fg) 10%, transparent);
}
.cmt-drawer-body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1 1 auto;
  padding: 0.9rem 1rem 1rem;
}

/* ---------- footer / composer toggle (drawer owns show/hide only) ---------- */
.cmt-drawer-foot {
  flex: 0 0 auto;
  border-top: 1px solid color-mix(in srgb, var(--cmt-drawer-fg) 12%, transparent);
  padding: 0.7rem 1rem calc(0.9rem + env(safe-area-inset-bottom, 0px));
}
.cmt-drawer-compose-toggle {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: var(--cmt-drawer-accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
}
.cmt-drawer-form-wrap[hidden] {
  display: none;
}
.cmt-drawer-form-wrap {
  margin-top: 0.6rem;
}

/* Inputs inside the sheet: >=16px prevents iOS auto-zoom; tap targets >=44px. */
.cmt-drawer-sheet input,
.cmt-drawer-sheet textarea,
.cmt-drawer-sheet select {
  font-size: 16px;
}
.cmt-drawer-sheet button {
  min-height: 44px;
}

@media (prefers-reduced-motion: reduce) {
  .cmt-drawer-scrim,
  .cmt-drawer-sheet {
    transition: none !important;
  }
}