/* Material-inspired minimal clean design */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=Roboto+Mono&display=swap');

:root {
  --primary: #1976d2;
  --primary-dark: #1565c0;
  --primary-light: #e3f2fd;
  --accent: #ff5722;
  --bg: #f5f5f5;
  --surface: #ffffff;
  --text: #212121;
  --text-secondary: #616161;
  --text-hint: #9e9e9e;
  --divider: #e0e0e0;
  --success: #43a047;
  --warning: #fb8c00;
  --error: #e53935;
  --shadow-1: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.12);
  --shadow-2: 0 3px 6px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.08);
  --shadow-4: 0 10px 20px rgba(0,0,0,0.10), 0 3px 6px rgba(0,0,0,0.08);
  --radius: 4px;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }

code, pre, .mono { font-family: 'Roboto Mono', monospace; }

/* ========= App Bar ========= */
header {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-2);
  position: sticky; top: 0; z-index: 100;
}
header nav {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  min-height: 56px;
  gap: 0;
}
header nav a {
  color: rgba(255,255,255,0.87);
  text-decoration: none !important;
  padding: 0 16px;
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  transition: all var(--transition);
  border-bottom: 2px solid transparent;
}
header nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
header nav a strong {
  font-weight: 700;
}
header nav a[style*="float:right"] {
  margin-left: auto;
  float: none !important;
  opacity: 0.75;
  font-size: 13px;
  text-transform: none;
}

/* ========= Main content ========= */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

h1 {
  font-size: 24px;
  font-weight: 400;
  margin: 0 0 4px 0;
  color: var(--text);
  letter-spacing: 0;
}
h1 small {
  font-size: 14px;
  color: var(--text-hint);
  margin-left: 12px;
  font-weight: 400;
}
h2 {
  font-size: 18px;
  font-weight: 500;
  margin: 32px 0 12px 0;
}

p, .muted {
  margin: 0 0 16px 0;
}
.muted {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ========= Filter card ========= */
.filters {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 14px 18px;
  margin: 16px 0 20px;
  display: flex;
  gap: 16px 20px;
  align-items: flex-end;
  flex-wrap: wrap;
}
.filters label {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex; flex-direction: column;
  gap: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 500;
}
.filters input[type=number] {
  padding: 6px 8px; border: 1px solid var(--divider); border-radius: 4px;
  font-family: inherit; font-size: 14px;
}
.filters .btn-primary, .filters .btn-export {
  padding: 8px 16px; border-radius: 4px; text-decoration: none !important;
  font-weight: 500; text-transform: uppercase; font-size: 13px;
  letter-spacing: 0.04em; cursor: pointer; border: none;
  display: inline-flex; align-items: center; gap: 4px;
  box-shadow: var(--shadow-1);
  transition: all var(--transition);
}
.filters .btn-primary { background: var(--primary); color: #fff; }
.filters .btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow-2); }
.filters .btn-export { background: var(--surface); color: var(--text); border: 1px solid var(--divider); }
.filters .btn-export:hover { background: #f5f5f5; box-shadow: var(--shadow-2); }
.filters select {
  padding: 6px 28px 6px 10px;
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%23616161'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
}
.filters select:hover { border-color: var(--text-secondary); }
.filters select:focus { border-color: var(--primary); outline: 2px solid var(--primary-light); outline-offset: -1px; }
.filters input[type=checkbox] {
  width: 18px; height: 18px;
  margin: 0 4px 0 0;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ========= Data table ========= */
table.grid {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  font-size: 13px;
}
table.grid thead th {
  background: #fafafa;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--divider);
  white-space: nowrap;
}
table.grid tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  vertical-align: top;
}
table.grid tbody tr:last-child td { border-bottom: none; }
table.grid tbody tr { transition: background var(--transition); }
table.grid tbody tr:hover td { background: #fafafa; }
table.grid td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  white-space: nowrap;
}
table.grid a { font-weight: 500; }
table.grid small {
  color: var(--text-hint);
  font-size: 11px;
  display: block;
  margin-top: 2px;
}
table.grid thead th .sort-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: inherit;
  font-weight: inherit;
  text-decoration: none;
  cursor: pointer;
  padding: 2px 4px;
  margin: -2px -4px;
  border-radius: 3px;
  transition: background var(--transition), color var(--transition);
}
table.grid thead th .sort-link:hover {
  background: #eef2f7;
  color: var(--text-primary);
}
table.grid thead th .sort-link.active {
  color: var(--text-primary);
  font-weight: 600;
}
table.grid thead th .sort-icon {
  font-size: 9px;
  opacity: 0.4;
  letter-spacing: 0;
}
table.grid thead th .sort-link.active .sort-icon {
  opacity: 1;
  color: var(--accent, #2563eb);
}

/* ========= Chips / tags ========= */
.tag {
  display: inline-block;
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 12px;
  margin-left: 4px;
  font-weight: 500;
  letter-spacing: 0.02em;
  background: #eeeeee;
  color: var(--text-secondary);
  line-height: 1.6;
}
.tag.brand { background: #fff3e0; color: #e65100; }
.tag.priority { background: var(--primary-light); color: var(--primary-dark); }
.tag.warn { background: #fff3e0; color: #bf360c; }

.status-form select {
  border: 1px solid transparent;
  padding: 3px 22px 3px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 12px;
  background-color: #eeeeee;
  color: var(--text-secondary);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%239e9e9e'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 6px center;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: filter var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  min-width: 90px;
}
.status-form select:hover { filter: brightness(0.95); }
.status-form select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

/* status color palette — Material tonal */
.status-form.status-available select { background-color: #c8e6c9; color: #1b5e20; }
.status-form.status-open      select { background-color: #bbdefb; color: #0d47a1; }
.status-form.status-closed    select { background-color: #ffcdd2; color: #b71c1c; }
.status-form.status-recording select { background-color: #d1c4e9; color: #311b92; }
.status-form.status-organizing select { background-color: #ffe0b2; color: #e65100; }
.status-form.status-unknown   select { background-color: #eeeeee; color: #616161; }

/* dropdown arrow color per theme (re-encode fill) */
.status-form.status-available select { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%231b5e20'><path d='M7 10l5 5 5-5z'/></svg>"); }
.status-form.status-open select      { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%230d47a1'><path d='M7 10l5 5 5-5z'/></svg>"); }
.status-form.status-closed select    { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%23b71c1c'><path d='M7 10l5 5 5-5z'/></svg>"); }
.status-form.status-recording select { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%23311b92'><path d='M7 10l5 5 5-5z'/></svg>"); }
.status-form.status-organizing select { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%23e65100'><path d='M7 10l5 5 5-5z'/></svg>"); }

/* Operator comment chip dropdown */
.comment-form select {
  border: 1px solid transparent;
  padding: 3px 22px 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 12px;
  background-color: #f5f5f5;
  color: var(--text-secondary);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%239e9e9e'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 6px center;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: filter var(--transition);
  width: 100%;
  max-width: 170px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.comment-form select:hover { filter: brightness(0.95); }
.comment-form select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

/* comment code color palette */
.comment-form.comment-in_progress select {
  background-color: #c8e6c9; color: #1b5e20; font-weight: 700;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%231b5e20'><path d='M7 10l5 5 5-5z'/></svg>");
}
.comment-form.comment-organized select {
  background-color: #a5d6a7; color: #1b5e20; font-weight: 700;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%231b5e20'><path d='M7 10l5 5 5-5z'/></svg>");
}
.comment-form.comment-not_interesting select {
  background-color: #eceff1; color: #455a64; text-decoration: line-through;
}
.comment-form.comment-wrong_match select {
  background-color: #ffcdd2; color: #b71c1c;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%23b71c1c'><path d='M7 10l5 5 5-5z'/></svg>");
}
.comment-form.comment-bad_data select {
  background-color: #ffe0b2; color: #e65100;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='%23e65100'><path d='M7 10l5 5 5-5z'/></svg>");
}
.comment-form.comment-duplicate select { background-color: #e1bee7; color: #4a148c; }
.comment-form.comment-low_priority select { background-color: #f5f5f5; color: #757575; }
.comment-form.comment-needs_recheck select { background-color: #fff59d; color: #f57f17; }
.comment-form.comment-none select { background-color: transparent; border-color: var(--divider); font-weight: 400; }
.tag.type-auto { background: #e8f5e9; color: #2e7d32; }
.tag.type-llm_confirmed { background: var(--primary-light); color: var(--primary-dark); }
.tag.type-manual_confirmed { background: #fff3e0; color: #e65100; }

/* ========= Card (review UI) ========= */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 24px;
  margin-top: 16px;
  transition: box-shadow var(--transition);
}
.card:hover { box-shadow: var(--shadow-2); }
.card h2 {
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 12px 0;
}

/* ========= Tinder-style review card ========= */
.review-card {
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow-2);
  overflow: hidden;
  max-width: 900px;
  margin: 16px auto;
}
.review-gap {
  background: #fafafa;
  padding: 20px 24px;
  border-bottom: 1px solid var(--divider);
}
.review-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.review-label {
  font-size: 11px; font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.review-label small { color: var(--text-hint); font-size: 11px; text-transform: none; letter-spacing: 0; margin-left: 4px; }
.review-gap h2 { font-size: 22px; font-weight: 500; margin: 6px 0 16px 0; }
.review-gap h2 a { color: var(--text); }
.review-gap h2 a:hover { color: var(--primary); text-decoration: none; }

.review-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px 20px; margin: 0 0 12px 0;
}
.review-meta div { margin: 0; }
.review-meta dt { font-size: 11px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.04em; }
.review-meta dd { margin: 2px 0 0 0; font-size: 14px; }

.review-desc { margin-top: 10px; }
.review-desc summary { cursor: pointer; font-size: 13px; color: var(--primary); }
.review-desc p { margin: 8px 0 0 0; font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

.review-samples { margin-top: 12px; }
.review-samples ul { margin: 4px 0 0 16px; padding: 0; font-size: 13px; }
.review-samples li { margin: 2px 0; }
.review-samples small { color: var(--text-hint); margin-left: 6px; }

.review-candidates { padding: 16px 24px; }
.candidate-row {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 0; border-bottom: 1px solid #f0f0f0;
}
.candidate-row:last-child { border-bottom: none; }
.cand-score {
  flex: 0 0 60px; text-align: center;
  font-size: 18px; font-weight: 700;
  padding: 6px 10px; border-radius: 4px;
  line-height: 1;
}
.cand-score small { display: block; font-size: 10px; color: inherit; font-weight: 500; opacity: 0.7; margin-top: 2px; }
.cand-score.score-high { background: #c8e6c9; color: #1b5e20; }
.cand-score.score-mid  { background: #fff9c4; color: #827717; }
.cand-score.score-low  { background: #ffecb3; color: #bf360c; }
.cand-body { flex: 1; min-width: 0; }
.cand-body a { font-weight: 500; }
.cand-body small { display: block; color: var(--text-secondary); font-size: 12px; margin-top: 2px; }
.cand-type { flex: 0 0 auto; }
.btn-link {
  flex: 0 0 auto;
  background: var(--primary); color: #fff !important;
  font-size: 12px; padding: 6px 12px;
  box-shadow: none; min-height: 30px;
}
.btn-link:hover { background: var(--primary-dark); }

.review-actions {
  padding: 16px 24px; background: #fafafa;
  border-top: 1px solid var(--divider);
  display: flex; gap: 8px; flex-wrap: wrap;
}
.review-actions button { min-height: 40px; }
.review-actions .btn-primary {
  background: var(--success); color: #fff;
  flex: 1; min-width: 200px;
}
.review-actions .btn-primary:hover { background: #2e7d32; }

/* ========= Buttons ========= */
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 16px;
  margin: 0 6px 4px 0;
  border: none;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--primary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  box-shadow: var(--shadow-1);
  transition: all var(--transition);
  user-select: none;
}
button:hover, .btn:hover { box-shadow: var(--shadow-2); background: #f5f5f5; }
button:active, .btn:active { box-shadow: var(--shadow-1); }
button[value="confirmed_unique"] { background: var(--success); color: #fff; }
button[value="confirmed_unique"]:hover { background: #388e3c; }
button[value="false_positive"] { background: var(--error); color: #fff; }
button[value="false_positive"]:hover { background: #c62828; }
button[value="skip"], button[value="needs_info"] { color: var(--text-secondary); }

/* ========= Pagination ========= */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
  margin: 24px 0;
}
.pagination a {
  min-width: 36px; height: 36px;
  padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--primary);
  font-weight: 500;
  text-decoration: none !important;
  box-shadow: var(--shadow-1);
  transition: all var(--transition);
}
.pagination a:hover { background: var(--primary-light); box-shadow: var(--shadow-2); }
.pagination .pg-current {
  padding: 0 16px;
  color: var(--text-secondary);
  font-size: 13px;
}

/* ========= Login ========= */
.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1976d2 0%, #42a5f5 100%);
  padding: 16px;
}
.login-card {
  background: var(--surface);
  padding: 40px 32px;
  border-radius: 8px;
  box-shadow: var(--shadow-4);
  width: 100%; max-width: 380px;
}
.login-card h1 {
  margin: 0 0 24px 0;
  font-size: 22px;
  font-weight: 500;
  text-align: center;
  color: var(--text);
}
.login-card .field {
  position: relative;
  margin-bottom: 20px;
}
.login-card label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 15px;
  background: var(--surface);
  transition: border-color var(--transition);
}
.login-card input:focus {
  border-color: var(--primary);
  outline: 2px solid var(--primary-light);
  outline-offset: -1px;
}
.login-card button {
  width: 100%;
  min-height: 40px;
  background: var(--primary);
  color: #fff;
  margin-top: 8px;
}
.login-card button:hover { background: var(--primary-dark); }
.login-card .error {
  color: var(--error);
  font-size: 13px;
  margin: 0 0 16px 0;
  padding: 10px 14px;
  background: #ffebee;
  border-radius: var(--radius);
  border-left: 3px solid var(--error);
}