/* Self-hosted fonts (not a Google Fonts CDN) so the whole app stays
   same-origin, no third-party requests - same posture as the sibling
   nutrition-reader project this one's font files were copied from.
   Atkinson Hyperlegible matters even more here than there: this is a
   reading app, so the easy-read toggle is a primary feature, not a
   nice-to-have accessibility extra. */
@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('/fonts/BricolageGrotesque-Variable.woff2') format('woff2-variations');
  font-weight: 500 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('/fonts/AtkinsonHyperlegible-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('/fonts/AtkinsonHyperlegible-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('/fonts/AtkinsonHyperlegible-Italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('/fonts/AtkinsonHyperlegible-BoldItalic.woff2') format('woff2');
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

/* ---------- Theme tokens ---------- */
:root {
  color-scheme: light dark;
  --font-scale: 1;

  --bg-page: #FBF6EC;
  --bg-surface: #FFFFFF;
  --bg-surface-alt: #F3EBDA;
  --bg-tint: #F6E6C9;
  --ink: #1B2A4A;
  --ink-soft: #34405C;
  --ink-muted: #5B667F;
  --ink-faint: #7C8296;
  --border: #D8CDB6;
  --border-soft: #E3D9C4;

  --accent: #E8A33D;
  --accent-ink: #1B2A4A;
  --accent-deep: #B98420;

  --border-w: 2px;
  --border-w-thin: 1px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #121B2E;
    --bg-surface: #1B2A4A;
    --bg-surface-alt: #16213A;
    --bg-tint: rgba(232, 163, 61, 0.16);
    --ink: #FBF6EC;
    --ink-soft: #C3CDDF;
    --ink-muted: #9AA7BE;
    --ink-faint: #8C99B2;
    --border: #33435F;
    --border-soft: #26344E;
  }
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { font-size: calc(20px * var(--font-scale)); }
html, body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
}
body {
  background: var(--bg-page);
  color: var(--ink);
  font-family: 'Bricolage Grotesque', system-ui, sans-serif;
  line-height: 1.5;
}
:root[data-easyread="true"] body { font-family: 'Atkinson Hyperlegible', system-ui, sans-serif; }
button, input, select { font-family: inherit; }
h1, h2, h3, p { margin: 0; }
img { max-width: 100%; display: block; }

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

/* ---------- App shell ---------- */
#app {
  max-width: 460px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--bg-page);
  display: flex;
  flex-direction: column;
}
@media (min-width: 461px) {
  #app {
    min-height: calc(100vh - 2.5rem);
    margin: 1.25rem auto;
    border-radius: 20px;
    border: var(--border-w-thin) solid var(--border-soft);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16);
    overflow: hidden;
  }
}

.screen {
  display: none;
  flex-direction: column;
  flex: 1;
  padding: 1.1rem 1.15rem 2rem;
  gap: 1.3rem;
}
.screen.is-active { display: flex; }

/* ---------- Header row ---------- */
.brand-row { display: flex; align-items: center; gap: 0.65rem; }
.brand-row .mark { width: 2rem; height: 2rem; flex-shrink: 0; }
.brand-row .wordmark { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.01em; }

.install-btn {
  margin-left: auto;
  display: flex; align-items: center; gap: 0.4rem;
  flex-shrink: 0;
  border: var(--border-w-thin) solid var(--border-soft);
  border-radius: 999px;
  background: var(--bg-surface);
  color: var(--ink-soft);
  font-size: 0.82rem; font-weight: 700;
  padding: 0.45rem 0.8rem 0.45rem 0.6rem;
  cursor: pointer;
}
.install-btn[hidden] { display: none; }
.install-btn svg { width: 1rem; height: 1rem; flex-shrink: 0; }
.install-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.install-tip {
  display: flex; align-items: flex-start; gap: 0.6rem;
  background: var(--bg-tint);
  border: var(--border-w-thin) solid var(--border-soft);
  border-radius: 0.8rem;
  padding: 0.7rem 0.8rem;
  font-size: 0.9rem; line-height: 1.45;
  color: var(--ink-soft);
}
.install-tip[hidden] { display: none; }
.install-tip-close {
  margin-left: auto; flex-shrink: 0;
  background: none; border: none; color: var(--ink-faint);
  font-size: 1.1rem; line-height: 1; cursor: pointer; padding: 0.1rem 0.3rem;
}

.nav-header { display: flex; align-items: center; gap: 0.6rem; }
.back-btn {
  display: flex; align-items: center; justify-content: center;
  width: 2.2rem; height: 2.2rem; flex-shrink: 0;
  border-radius: 999px; border: var(--border-w-thin) solid var(--border-soft);
  background: var(--bg-surface); color: var(--ink); cursor: pointer;
}
.back-btn svg { width: 1.2rem; height: 1.2rem; }
.nav-header h1 { font-size: 1.1rem; font-weight: 700; }

.intro-text { font-size: 1.05rem; line-height: 1.5; color: var(--ink-soft); }
.tip-line { display: flex; gap: 0.5rem; font-size: 0.9rem; color: var(--ink-muted); line-height: 1.5; }
.tip-line .glyph { color: var(--accent-deep); font-size: 0.9rem; }

/* ---------- Buttons ---------- */
.btn {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  border-radius: 0.9rem; border: var(--border-w) solid transparent;
  font-size: 1.02rem; font-weight: 700;
  padding: 0.85rem 1.1rem; min-height: 3.1rem;
  cursor: pointer;
}
.btn:disabled { cursor: not-allowed; opacity: 0.6; }
.btn[hidden] { display: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); min-height: 3.9rem; }
.btn-secondary { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline { background: transparent; border-color: var(--ink); color: var(--ink); font-weight: 600; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 0.6rem; }
.btn-row .btn { flex: 1; }
.btn svg { width: 1.3rem; height: 1.3rem; flex-shrink: 0; }
.btn-icon { width: 3.2rem; min-height: 3.2rem; padding: 0; flex: 0 0 auto; }

/* ---------- Toggle switch (easy-read font) ---------- */
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 0.8rem; }
.switch-row > span:first-child { font-size: 0.95rem; }
.switch { position: relative; display: inline-block; width: 2.7rem; height: 1.55rem; flex-shrink: 0; }
.switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.switch .track {
  position: absolute; inset: 0; border-radius: 999px;
  background: var(--border); transition: background 0.15s ease;
  /* Purely decorative - the invisible, full-size <input> above it (same
     stacking context, painted first) is what must receive every click/tap.
     Without this, the track/thumb (painted on top) intercepts the pointer
     event instead of forwarding it, which real browsers mostly paper over
     via label-click bubbling but which Playwright's actionability check
     correctly refuses to click through - caught by reader-flow.spec.js. */
  pointer-events: none;
}
.switch .thumb {
  position: absolute; top: 0.15rem; left: 0.15rem;
  width: 1.25rem; height: 1.25rem; border-radius: 50%;
  background: var(--bg-page); transition: transform 0.15s ease;
}
.switch input:checked + .track { background: var(--ink); }
.switch input:checked + .track .thumb { transform: translateX(1.15rem); background: var(--bg-page); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 2px; }

.settings-heading { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-faint); }
.settings-block { display: flex; flex-direction: column; gap: 1.1rem; }
.how-it-works-link { font-size: 0.9rem; color: var(--ink-muted); text-decoration: underline; }

.field-row { display: flex; flex-direction: column; gap: 0.4rem; }
.field-row > span { font-size: 0.9rem; color: var(--ink-soft); }
.select-wrap { position: relative; }
.select-wrap select {
  width: 100%; appearance: none; -webkit-appearance: none;
  background: var(--bg-surface); color: var(--ink);
  border: var(--border-w-thin) solid var(--border-soft); border-radius: 0.7rem;
  padding: 0.7rem 2.2rem 0.7rem 0.8rem; font-size: 0.98rem;
}
.select-wrap::after {
  content: ''; position: absolute; right: 0.9rem; top: 50%;
  width: 0.55rem; height: 0.55rem; margin-top: -0.35rem;
  border-right: 2px solid var(--ink-muted); border-bottom: 2px solid var(--ink-muted);
  transform: rotate(45deg); pointer-events: none;
}

.font-size-row { display: flex; align-items: center; justify-content: space-between; gap: 0.8rem; }
.font-size-row > span { font-size: 0.9rem; color: var(--ink-soft); }
.font-size-buttons { display: flex; gap: 0.5rem; }
.font-size-buttons button {
  width: 2.3rem; height: 2.3rem; border-radius: 0.6rem;
  border: var(--border-w-thin) solid var(--border-soft); background: var(--bg-surface);
  color: var(--ink); font-weight: 700; font-size: 1rem; cursor: pointer;
}
.font-size-buttons button:disabled { opacity: 0.5; cursor: not-allowed; }
.divider { height: var(--border-w-thin); background: var(--border-soft); border: none; margin: 0; }

/* ---------- Photo / reading screen ---------- */
.photo-frame {
  width: 100%; aspect-ratio: 4 / 3; border-radius: 1rem; overflow: hidden;
  background: var(--bg-surface-alt); border: var(--border-w-thin) solid var(--border-soft);
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.reading-heading { font-size: 1.4rem; font-weight: 700; }
.reading-hint { font-size: 0.9rem; color: var(--ink-muted); line-height: 1.45; }
.reading-busy { font-size: 0.9rem; color: var(--ink-muted); font-style: italic; }
.reading-busy[hidden] { display: none; }

.status-line { font-size: 0.95rem; color: var(--ink-muted); min-height: 1.4em; }
.error-banner {
  background: var(--bg-tint); border: var(--border-w-thin) solid var(--accent-deep);
  border-radius: 0.7rem; padding: 0.7rem 0.9rem;
  font-size: 0.9rem; line-height: 1.4; color: var(--ink);
}
.error-banner:empty { display: none; }
.capacity-notice {
  background: var(--bg-surface-alt); border: var(--border-w-thin) solid var(--border-soft);
  border-radius: 0.7rem; padding: 0.7rem 0.9rem;
  font-size: 0.9rem; line-height: 1.4; color: var(--ink-muted);
}
.capacity-notice:empty { display: none; }
.upload-actions { display: flex; flex-direction: column; gap: 0.7rem; }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed var(--border); border-radius: 1rem;
  padding: 1.1rem; text-align: center; font-size: 0.9rem; color: var(--ink-muted);
}
.dropzone.dragover { border-color: var(--accent); background: var(--bg-tint); }

/* ---------- Samples ---------- */
.sample-block { display: flex; flex-direction: column; gap: 0.6rem; }
.sample-block[hidden] { display: none; }
.sample-heading { font-size: 0.9rem; font-weight: 700; color: var(--ink-soft); }
.sample-row { display: flex; gap: 0.7rem; overflow-x: auto; padding-bottom: 0.2rem; }
.sample-card {
  flex: 0 0 auto; width: 6.2rem; display: flex; flex-direction: column; gap: 0.35rem;
  background: none; border: none; padding: 0; cursor: pointer; color: var(--ink);
}
.sample-card:hover, .sample-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 0.6rem; }
.sample-thumb { width: 6.2rem; height: 6.2rem; object-fit: cover; border-radius: 0.7rem; border: var(--border-w-thin) solid var(--border-soft); }
.sample-name { font-size: 0.78rem; line-height: 1.25; text-align: left; }
.sample-badge {
  display: inline-block; background: var(--ink); color: var(--bg-page);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.2rem 0.55rem; border-radius: 999px; margin-bottom: 0.4rem;
}

/* ---------- Reader screen ---------- */
.reader-toolbar { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }

.truncated-banner {
  background: var(--bg-tint); border: var(--border-w-thin) solid var(--accent-deep);
  border-radius: 0.7rem; padding: 0.6rem 0.8rem; font-size: 0.85rem; color: var(--ink);
}
.truncated-banner[hidden] { display: none; }

.no-voice-notice {
  background: var(--bg-surface-alt); border: var(--border-w-thin) solid var(--border-soft);
  border-radius: 0.7rem; padding: 0.7rem 0.9rem; font-size: 0.88rem; line-height: 1.4; color: var(--ink-muted);
}
.no-voice-notice[hidden] { display: none; }

.reader-text {
  flex: 1; overflow-y: auto; padding-bottom: 6rem;
  font-size: 1.15rem; line-height: 1.75; color: var(--ink);
}
:root[data-easyread="true"] .reader-text { font-size: 1.1rem; line-height: 1.9; }

.reader-page + .reader-page { margin-top: 1.6rem; padding-top: 1.4rem; border-top: var(--border-w-thin) dashed var(--border-soft); }
.reader-page-lang {
  display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.5rem;
}
.reader-heading { font-size: 1.3rem; font-weight: 700; margin: 1rem 0 0.5rem; }
.reader-verse { font-style: italic; color: var(--ink-soft); white-space: pre-line; margin: 0.9rem 0; padding-left: 0.9rem; border-left: 3px solid var(--border-soft); }
.reader-caption { font-size: 0.9rem; color: var(--ink-muted); font-style: italic; margin: 0.6rem 0; }
.reader-furniture { font-size: 0.85rem; color: var(--ink-faint); margin: 0.4rem 0; }
.reader-text[data-show-furniture="false"] .reader-furniture { display: none; }

.utterance { cursor: pointer; border-radius: 0.3rem; padding: 0.02em 0.1em; }
.utterance.is-current { background: var(--bg-tint); box-shadow: 0 0 0 2px var(--accent) inset; }
.utterance .illegible-mark { color: var(--accent-deep); font-weight: 700; }

/* ---------- Player bar ---------- */
.player-bar {
  position: sticky; bottom: 0; left: 0; right: 0;
  display: flex; flex-direction: column; gap: 0.6rem;
  background: var(--bg-surface); border-top: var(--border-w-thin) solid var(--border-soft);
  padding: 0.8rem 0.9rem calc(0.8rem + env(safe-area-inset-bottom));
  margin: 0 -1.15rem -2rem;
}
.player-controls { display: flex; align-items: center; justify-content: center; gap: 0.8rem; }
.player-controls .btn-icon { width: 2.8rem; min-height: 2.8rem; border-radius: 999px; }
.player-controls .btn-play { width: 3.6rem; min-height: 3.6rem; }
.player-settings { display: flex; gap: 0.5rem; }
.player-settings .select-wrap { flex: 1; }
.player-settings select { padding: 0.5rem 1.8rem 0.5rem 0.65rem; font-size: 0.85rem; }

/* ---------- Feedback ---------- */
.feedback { display: flex; flex-direction: column; gap: 0.7rem; margin-top: 1.2rem; }
.feedback-question { font-size: 0.9rem; font-weight: 600; color: var(--ink-soft); }
.feedback-buttons { display: flex; gap: 0.6rem; }
.feedback-btn {
  width: 2.8rem; height: 2.8rem; border-radius: 0.7rem;
  border: var(--border-w-thin) solid var(--border-soft); background: var(--bg-surface);
  color: var(--ink-soft); cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.feedback-btn svg { width: 1.3rem; height: 1.3rem; }
.feedback-btn[data-thumb="down"] svg { transform: scaleY(-1); }
.feedback-btn.is-selected { background: var(--ink); border-color: var(--ink); color: var(--bg-page); }
.feedback-btn:disabled { cursor: not-allowed; opacity: 0.55; }
.feedback-comment { display: flex; flex-direction: column; gap: 0.6rem; }
.feedback-comment[hidden] { display: none; }
.feedback-textarea {
  width: 100%; min-height: 4rem; border-radius: 0.7rem;
  border: var(--border-w-thin) solid var(--border-soft); background: var(--bg-surface);
  color: var(--ink); padding: 0.6rem 0.8rem; font-size: 0.9rem; resize: vertical;
}
.feedback-thanks { font-size: 0.9rem; color: var(--ink-muted); font-style: italic; }