*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #0f0f0f;
  --surface: #1a1a1a;
  --border:  #2a2a2a;
  --text:    #e8e8e8;
  --muted:   #888;
  --accent:  #4a9eff;
  --again:   #e05555;
  --hard:    #e09955;
  --good:    #55b855;
  --easy:    #4a9eff;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ── Screens ─────────────────────────────────────────────────────────── */
.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 2.5rem 1.5rem 2rem;
  min-height: 100vh;
  min-height: 100dvh;
}
.screen.active { display: flex; }

/* ── Home ────────────────────────────────────────────────────────────── */
#screen-home {
  justify-content: center;
  gap: 1.5rem;
  text-align: center;
}
#screen-home h1 { font-size: 2rem; color: var(--accent); letter-spacing: -0.02em; }
.nav-links { margin-top: 1rem; }

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  min-width: 140px;
  transition: opacity 0.12s;
}
.btn-primary:active  { opacity: 0.75; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-large { font-size: 1.3rem; padding: 1.1rem 3rem; border-radius: 16px; }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn-secondary:active { opacity: 0.7; }

.btn-danger {
  background: var(--again);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.btn-danger-sm {
  background: transparent;
  color: var(--again);
  border: 1px solid var(--again);
  border-radius: 6px;
  padding: 0.25rem 0.55rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0;
}

/* ── Session ─────────────────────────────────────────────────────────── */
#screen-session {
  justify-content: center;
  gap: 1.75rem;
  text-align: center;
}
.progress-text { font-size: 0.8rem; color: var(--muted); position: absolute; top: 1.5rem; }
.cue-text  { font-size: 1.7rem; font-weight: 500; line-height: 1.4; max-width: 600px; min-height: 2.5em; }
.status-text { font-size: 1.15rem; color: var(--muted); min-height: 1.6em; }
.transcript { font-size: 1rem; color: var(--accent); font-style: italic; min-height: 1.8em; max-width: 500px; }
.session-controls { display: flex; gap: 0.6rem; flex-wrap: wrap; justify-content: center; }
.btn-submit-fallback {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  cursor: pointer;
  margin-top: 0.25rem;
}
.voice-hint { font-size: 0.72rem; color: var(--border); margin-top: 0.5rem; }

/* ── Review ──────────────────────────────────────────────────────────── */
#screen-review {
  align-items: stretch;
  padding: 1rem;
}
#screen-review .screen-header { margin-bottom: 0.75rem; }
.review-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 0.65rem; padding-bottom: 1rem; }

.review-item {
  background: var(--surface);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--border);
}
.review-item.rating-again { border-left-color: var(--again); }
.review-item.rating-hard  { border-left-color: var(--hard); }
.review-item.rating-good  { border-left-color: var(--good); }
.review-item.rating-easy  { border-left-color: var(--easy); }
.review-item.skipped      { opacity: 0.45; }

.review-cue      { font-weight: 600; margin-bottom: 0.2rem; }
.review-response { color: var(--accent); font-style: italic; font-size: 0.9rem; margin-bottom: 0.2rem; }
.review-expected { color: var(--muted); font-size: 0.82rem; margin-bottom: 0.3rem; }
.review-feedback { font-size: 0.85rem; margin-bottom: 0.55rem; }
.low-conf { color: var(--hard); cursor: help; margin-left: 0.25rem; }

.rating-picker { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.rating-btn {
  background: var(--border);
  color: var(--muted);
  border: none;
  border-radius: 6px;
  padding: 0.28rem 0.65rem;
  font-size: 0.78rem;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
.rating-btn[data-rating="again"].selected { background: var(--again); color: #fff; }
.rating-btn[data-rating="hard"].selected  { background: var(--hard);  color: #fff; }
.rating-btn[data-rating="good"].selected  { background: var(--good);  color: #fff; }
.rating-btn[data-rating="easy"].selected  { background: var(--easy);  color: #fff; }

.review-footer { padding-top: 0.75rem; display: flex; justify-content: center; }

/* ── Summary ─────────────────────────────────────────────────────────── */
#screen-summary { justify-content: center; gap: 2rem; text-align: center; }
#screen-summary h2 { font-size: 1.6rem; }
.summary-stats p  { color: var(--muted); margin-bottom: 0.75rem; }
.rating-dist { display: flex; gap: 1.75rem; justify-content: center; font-size: 1.4rem; }
.rating-dist .again { color: var(--again); }
.rating-dist .hard  { color: var(--hard); }
.rating-dist .good  { color: var(--good); }
.rating-dist .easy  { color: var(--easy); }

/* ── Settings ────────────────────────────────────────────────────────── */
#screen-settings {
  align-items: stretch;
  padding: 1rem;
  gap: 0;
}
.settings-group {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.settings-label {
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.settings-value {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin-top: 0.25rem;
}
.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.15rem;
}
.hint.tip {
  margin-top: 0.5rem;
  line-height: 1.5;
  color: var(--muted);
}

/* ── Admin ───────────────────────────────────────────────────────────── */
#screen-admin {
  align-items: stretch;
  padding: 1rem;
  gap: 0.75rem;
}
.screen-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.screen-header h2 { margin: 0; }

.tab-bar { display: flex; gap: 0.4rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.tab { background: none; border: none; color: var(--muted); padding: 0.35rem 0.75rem; border-radius: 6px; font-size: 0.88rem; cursor: pointer; }
.tab.active { color: var(--text); background: var(--surface); }

.tab-content { display: none; flex-direction: column; gap: 0.65rem; overflow-y: auto; }
.tab-content.active { display: flex; }

.hint { color: var(--muted); font-size: 0.83rem; }
.muted { color: var(--muted); }

textarea#import-json {
  width: 100%;
  height: 160px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem;
  font-size: 0.78rem;
  font-family: monospace;
  resize: vertical;
}

.import-card {
  background: var(--surface);
  border-radius: 10px;
  padding: 0.9rem;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.import-field { display: flex; flex-direction: column; gap: 0.2rem; }
.import-field label { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.import-field input,
.import-field select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.38rem 0.6rem;
  font-size: 0.88rem;
  width: 100%;
}

.filter-row { display: flex; gap: 0.5rem; }
.filter-row input { flex: 1; }

input[type="search"],
input[type="text"] {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.48rem 0.75rem;
  font-size: 0.88rem;
  width: 100%;
}
select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.48rem 0.6rem;
  font-size: 0.88rem;
}

.browse-item {
  background: var(--surface);
  border-radius: 10px;
  padding: 0.75rem;
  border-left: 3px solid var(--good);
}
.browse-item.unapproved { border-left-color: var(--muted); opacity: 0.65; }
.browse-filename { font-family: monospace; font-size: 0.7rem; color: var(--accent); opacity: 0.6; margin-bottom: 0.15rem; }
.browse-cue      { font-weight: 600; margin-bottom: 0.2rem; font-size: 0.95rem; }
.browse-expected { color: var(--accent); font-size: 0.85rem; margin-bottom: 0.2rem; }
.browse-meta     { color: var(--muted); font-size: 0.73rem; margin-bottom: 0.4rem; }
.browse-actions  { display: flex; gap: 0.4rem; }
.browse-actions button {
  background: var(--border);
  color: var(--text);
  border: none;
  border-radius: 6px;
  padding: 0.22rem 0.55rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.item-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.item-id { font-size: 0.72rem; color: var(--muted); font-family: monospace; min-width: 2.5rem; }

.error   { color: var(--again); }
.success { color: var(--good); }