/* ==========================================================================
   Taigi Mass Lookup — app styles
   ========================================================================== */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-shell);
  color: var(--text-01);
  font-family: var(--font-sans);
  min-height: 100vh;
}

/* Use Source Han / Noto for CJK glyphs, fall back to Inter for Latin */
.taigi-text {
  font-family: 'Inter', 'Noto Sans TC', 'Noto Serif TC', 'PingFang TC',
               'Heiti TC', 'Microsoft JhengHei', sans-serif;
  font-feature-settings: "palt" 1;
}

.app-shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 32px 96px;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}
.app-title {
  font-size: 23px;
  line-height: 32px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-00);
  margin: 0;
}
.app-title .accent {
  color: var(--uBlue-06);
}
.app-subtitle {
  font-size: 13px;
  color: var(--text-02);
  margin-top: 4px;
}
.brand-mark {
  font-size: 11px;
  color: var(--text-03);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Input card ─────────────────────────────────────────────────────── */
.input-card {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0;
  overflow: hidden;
}
.input-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--neutral-01);
}
.input-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-02);
  font-weight: 500;
}
.input-toolbar-left .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--uBlue-06);
}
.input-toolbar-right {
  display: flex;
  gap: 8px;
}

.taigi-input {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  padding: 16px 20px;
  border: none;
  outline: none;
  font-family: 'Inter', 'Noto Sans TC', 'PingFang TC', sans-serif;
  font-size: 15px;
  line-height: 28px;
  color: var(--text-01);
  background: transparent;
  display: block;
}
.taigi-input::placeholder {
  color: var(--text-04);
}

.input-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border-subtle);
  background: var(--neutral-01);
  font-size: 11px;
  color: var(--text-03);
}

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 28px;
  padding: 0 12px;
  border-radius: 4px;
  border: 1px solid transparent;
  font: 600 13px/1 var(--font-sans);
  letter-spacing: 0.25px;
  cursor: pointer;
  transition: all var(--timing-fast) var(--ease-standard);
  white-space: nowrap;
  user-select: none;
}
.btn:focus-visible {
  outline: 1px solid var(--uBlue-06);
  outline-offset: 1px;
}
.btn-primary {
  background: var(--uBlue-06);
  color: white;
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-primary:active { background: var(--uBlue-07); }
.btn-primary:disabled {
  background: var(--neutral-03);
  color: var(--text-04);
  cursor: not-allowed;
}
.btn-secondary {
  background: var(--bg-base);
  border-color: var(--neutral-04);
  color: var(--text-01);
}
.btn-secondary:hover {
  background: var(--neutral-02);
  border-color: var(--neutral-05);
}
.btn-ghost {
  background: transparent;
  color: var(--text-02);
}
.btn-ghost:hover {
  background: var(--neutral-02);
  color: var(--text-01);
}
.btn-large {
  height: 36px;
  padding: 0 16px;
  font-size: 13px;
}

/* ── Results section ────────────────────────────────────────────────── */
.results-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 32px 0 16px;
  font-size: 11px;
  color: var(--text-03);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.results-meta .count {
  font-weight: 600;
  color: var(--text-02);
}
.results-meta .divider {
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
  margin: 0 12px;
}

/* ── Results controls (layout / tone) ──────────────────────────────── */
.results-controls {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0 0 16px;
  flex-wrap: wrap;
}
.results-control {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.results-control-label {
  font-size: 11px;
  color: var(--text-03);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}
.seg-toggle {
  display: inline-flex;
  background: var(--neutral-02);
  border-radius: 4px;
  padding: 2px;
  gap: 2px;
}
.seg-toggle button {
  border: none;
  background: transparent;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-02);
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all var(--timing-fast) var(--ease-standard);
}
.seg-toggle button:hover { color: var(--text-01); }
.seg-toggle button.is-active {
  background: white;
  color: var(--text-00);
  box-shadow: var(--shadow-superlow);
  cursor: default;
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ── Sentence row ───────────────────────────────────────────────────── */
.sentence-row {
  position: relative;
  padding: 16px 16px 16px 20px;
  border-radius: 6px;
  transition: background var(--timing-fast) var(--ease-standard);
  border-left: 2px solid transparent;
}
.sentence-row:hover {
  background: var(--bg-base);
  border-left-color: var(--uBlue-03);
}
.sentence-row.is-active {
  background: var(--bg-selected);
  border-left-color: var(--uBlue-06);
}
.sentence-row .row-actions {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--timing-fast) var(--ease-standard);
}
.sentence-row:hover .row-actions,
.sentence-row.is-active .row-actions {
  opacity: 1;
}
.row-index {
  position: absolute;
  left: -28px;
  top: 18px;
  width: 24px;
  text-align: right;
  font-size: 11px;
  color: var(--text-04);
  font-variant-numeric: tabular-nums;
}

.icon-btn {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-03);
  cursor: pointer;
  transition: all var(--timing-fast) var(--ease-standard);
}
.icon-btn:hover {
  background: var(--neutral-02);
  color: var(--text-01);
}
.icon-btn.copied {
  color: var(--green-06);
}

/* ── Ruby layout (default) ──────────────────────────────────────────── */
.ruby-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0 4px;
  align-items: flex-end;
  line-height: 1;
}
.ruby-token {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 4px 2px 4px;
  margin: 0 1px;
  border-radius: 3px;
  cursor: pointer;
  transition: background var(--timing-fast) var(--ease-standard);
  min-width: 0;
}
.ruby-token:hover {
  background: var(--uBlue-01);
}
.ruby-token.is-selected {
  background: var(--uBlue-02);
}
.ruby-token.punct {
  cursor: default;
  padding: 4px 0;
}
.ruby-token.punct:hover {
  background: transparent;
}
.ruby-romaji {
  font-size: 11px;
  line-height: 16px;
  color: var(--uBlue-07);
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.ruby-han {
  font-size: 22px;
  line-height: 32px;
  color: var(--text-01);
  font-weight: 400;
  white-space: nowrap;
}
.ruby-token.punct .ruby-han {
  color: var(--text-03);
}
.ruby-token.is-romaji .ruby-han {
  /* the original token was already romaji; show han slot empty */
  color: var(--text-04);
  font-style: italic;
  font-size: 18px;
}

/* ── Stacked layout ─────────────────────────────────────────────────── */
.stacked-line {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stacked-han {
  font-size: 22px;
  line-height: 36px;
  color: var(--text-01);
  letter-spacing: 0.04em;
}
.stacked-romaji {
  font-size: 14px;
  line-height: 24px;
  color: var(--uBlue-07);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.stacked-token, .side-token {
  display: inline;
  padding: 1px 1px;
  border-radius: 3px;
  cursor: pointer;
  transition: background var(--timing-fast) var(--ease-standard);
}
.stacked-token:hover, .side-token:hover {
  background: var(--uBlue-01);
}
.stacked-token.is-selected, .side-token.is-selected {
  background: var(--uBlue-02);
}
.stacked-token.punct, .side-token.punct { cursor: default; }
.stacked-token.punct:hover, .side-token.punct:hover { background: transparent; }

/* ── Side-by-side layout ────────────────────────────────────────────── */
.side-line {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.side-col-han {
  font-size: 19px;
  line-height: 32px;
  color: var(--text-01);
  letter-spacing: 0.03em;
}
.side-col-romaji {
  font-size: 14px;
  line-height: 24px;
  color: var(--uBlue-07);
  font-weight: 500;
  padding-left: 16px;
  border-left: 1px solid var(--border-subtle);
}

/* ── Table layout ───────────────────────────────────────────────────── */
.table-line {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-base);
}
.table-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  border-bottom: 1px solid var(--border-subtle);
}
.table-row:last-child { border-bottom: none; }
.table-label {
  background: var(--neutral-01);
  padding: 10px 12px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-03);
  font-weight: 600;
  border-right: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}
.table-cell {
  padding: 10px 14px;
  font-size: 16px;
  line-height: 28px;
}
.table-cell.romaji {
  color: var(--uBlue-07);
  font-size: 13px;
  font-weight: 500;
}

/* ── Paragraph break ────────────────────────────────────────────────── */
.paragraph-break {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 28px 16px;
  padding: 0;
  user-select: none;
}
.paragraph-break .pb-line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--neutral-04);
  min-width: 12px;
}
.paragraph-break .pb-mark {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-04);
  font-weight: 600;
  font-family: var(--font-sans);
}
.paragraph-break .pb-mark .pb-pilcrow {
  font-size: 13px;
  color: var(--neutral-06);
  font-weight: 400;
}

/* ── Loading / status pill ──────────────────────────────────────────── */
.row-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-03);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.row-status .pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--uBlue-06);
  animation: pulse 1.4s ease-in-out infinite;
}
.row-status.error .pulse {
  background: var(--red-06);
  animation: none;
}
@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* ── Word popover ───────────────────────────────────────────────────── */
.word-popover {
  position: absolute;
  z-index: 1200;
  min-width: 220px;
  max-width: 320px;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  box-shadow: var(--shadow-high);
  padding: 14px 16px;
  animation: popIn 150ms var(--ease-standard);
}
@keyframes popIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.word-popover .pop-han {
  font-size: 22px;
  line-height: 28px;
  color: var(--text-00);
  font-weight: 500;
}
.word-popover .pop-romaji {
  font-size: 14px;
  color: var(--uBlue-06);
  font-weight: 600;
  margin-top: 2px;
  letter-spacing: 0.01em;
}
.word-popover .pop-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 10px 0;
}
.word-popover .pop-gloss-label {
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-03);
  font-weight: 600;
  margin-bottom: 4px;
}
.word-popover .pop-gloss {
  font-size: 13px;
  line-height: 20px;
  color: var(--text-02);
}
.word-popover .pop-stub {
  color: var(--text-04);
  font-style: italic;
}

/* ── Empty state ────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 64px 32px;
  color: var(--text-03);
}
.empty-state .es-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border: 1.5px solid var(--neutral-04);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-04);
}
.empty-state h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-01);
  margin: 0 0 4px;
}
.empty-state p {
  font-size: 13px;
  line-height: 20px;
  color: var(--text-03);
  max-width: 420px;
  margin: 0 auto;
}

/* ── Footer note ────────────────────────────────────────────────────── */
.foot-note {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  font-size: 11px;
  color: var(--text-03);
  line-height: 18px;
  text-align: center;
}
.foot-note a {
  color: var(--uBlue-07);
  text-decoration: none;
}
.foot-note a:hover { text-decoration: underline; }