:root {
  --bg: #f4f5f9;
  --surface: #ffffff;
  --surface-2: #f8f9fc;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.13);
  --text: #111827;
  --text-muted: #6b7280;
  --text-faint: #9ca3af;

  --accent-1: #6366f1;
  --accent-2: #7c3aed;
  --accent-contrast: #ffffff;

  --success: #16a34a;
  --success-bg: rgba(22, 163, 74, 0.10);
  --error: #dc2626;
  --error-bg: rgba(220, 38, 38, 0.08);
  --warning: #b45309;
  --warning-bg: rgba(180, 83, 9, 0.09);
  --neutral-bg: rgba(0, 0, 0, 0.05);

  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 7px;

  --shadow-card: 0 1px 2px rgba(0,0,0,0.05), 0 6px 20px rgba(0,0,0,0.06);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  background: radial-gradient(ellipse 1000px 400px at 50% -60px, rgba(99,102,241,0.09), transparent 65%), var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 28px 64px;
}

/* ── Header ──────────────────────────────────────────────────────────────── */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff;
  box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}

.brand h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-faint);
  font-weight: 400;
}

.badge-local {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  font-size: 12.5px;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.badge-local svg { color: #16a34a; }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ── API Key display ────────────────────────────────────────────────────── */

.api-key-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px 5px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
  font-size: 12.5px;
}

.api-key-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0;
}

.api-key-val {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 12px;
  color: var(--accent-1);
  letter-spacing: 0.02em;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  user-select: all;
}

.api-key-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  padding: 3px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 150ms var(--ease-out), background 150ms var(--ease-out);
  min-width: 22px;
  min-height: 22px;
}

.api-key-btn:hover { color: var(--accent-1); background: var(--surface-2); }
.api-key-btn.copied { color: #16a34a; }

.api-key-btn--new {
  color: var(--accent-1);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: 5px;
}
.api-key-btn--new:hover { background: rgba(99,102,241,0.08); color: var(--accent-2); }

.settings-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
  color: var(--text-faint);
  cursor: pointer;
  transition: color 150ms var(--ease-out), background 150ms var(--ease-out), border-color 150ms var(--ease-out);
}
.settings-toggle-btn:hover { color: var(--accent-1); }
.settings-toggle-btn.is-active {
  color: var(--accent-1);
  border-color: rgba(99,102,241,0.35);
  background: rgba(99,102,241,0.08);
}

/* ── Card ─────────────────────────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 24px;
  margin-bottom: 16px;
}

/* ── Fields ───────────────────────────────────────────────────────────────── */

.field { margin-bottom: 16px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}

.label-count {
  font-weight: 400;
  color: var(--text-faint);
  font-size: 12px;
  margin-left: 4px;
}

input[type="url"],
input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1.5px solid var(--border-strong);
  color: var(--text);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14.5px;
  font-family: inherit;
  min-height: 44px;
  transition: border-color 150ms var(--ease-out), box-shadow 150ms var(--ease-out);
}

textarea {
  resize: none;
  overflow: hidden;
  min-height: 130px;
  max-height: 320px;
  line-height: 1.7;
}

input::placeholder,
textarea::placeholder { color: var(--text-faint); }

input:focus-visible,
textarea:focus-visible,
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.18);
  background: var(--surface);
}

.hint { display: none; }

.is-hidden { display: none !important; }

/* ── Button ───────────────────────────────────────────────────────────────── */

.btn-primary {
  appearance: none;
  border: none;
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--radius-md);
  padding: 13px 20px;
  min-height: 48px;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(99,102,241,0.28);
  transition: transform 120ms var(--ease-out), filter 150ms var(--ease-out), box-shadow 150ms var(--ease-out);
  touch-action: manipulation;
}

.btn-primary:hover {
  filter: brightness(1.07);
  box-shadow: 0 4px 16px rgba(99,102,241,0.36);
}

.btn-primary:active { transform: scale(0.98); }

.btn-primary:focus-visible {
  outline: 2px solid var(--accent-1);
  outline-offset: 3px;
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-icon { flex: none; }

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  animation: spin 700ms linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.form-error {
  margin: 12px 0 0;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--error-bg);
  color: var(--error);
  font-size: 13.5px;
  border: 1px solid rgba(220,38,38,0.22);
}

/* ── Results ──────────────────────────────────────────────────────────────── */

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.results-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.summary { display: none; }

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
  font-size: 13.5px;
}

.results-table thead th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-faint);
  background: var(--surface-2);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

.results-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.results-table tbody tr:last-child td { border-bottom: none; }

.results-table tbody tr:hover { background: rgba(0,0,0,0.015); }

.col-idx {
  width: 36px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
}

.col-progress { width: 200px; }
.col-status   { width: 110px; }

.col-action {
  width: 105px;
  text-align: right;
}

/* ── Progress cell ────────────────────────────────────────────────────────── */

.prog-dash { color: var(--text-faint); font-size: 13px; }

.prog-wrap { display: flex; flex-direction: column; gap: 5px; }

.prog-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.prog-bar-row .progress-track { flex: 1; }

.prog-label {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  min-width: 34px;
  text-align: right;
  flex-shrink: 0;
}

.prog-pct { color: var(--accent-1); }
.prog-ok  { color: var(--success); }

.prog-sub {
  font-size: 11px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}

/* ── Caption cell ─────────────────────────────────────────────────────────── */

.caption-cell { max-width: 300px; }

.caption-text {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
  color: var(--text);
}

.caption-url {
  display: block;
  margin-top: 2px;
  font-size: 11.5px;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.error-text {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--error);
}

/* ── Progress bar ─────────────────────────────────────────────────────────── */

.progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-track.is-success .progress-fill {
  background: linear-gradient(90deg, #16a34a, #22c55e);
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transition: width 250ms var(--ease-out);
}

.progress-fill.is-indeterminate {
  width: 40% !important;
  animation: indeterminate 1.1s ease-in-out infinite;
}

@keyframes indeterminate {
  0%   { transform: translateX(-150%); }
  100% { transform: translateX(380%); }
}

/* ── Status badge ─────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge svg { flex: none; }

.badge-spin { animation: spin 900ms linear infinite; }

@media (prefers-reduced-motion: reduce) {
  .badge-spin { animation: none; }
}

.badge-queued {
  background: var(--neutral-bg);
  color: var(--text-muted);
}

.badge-probing,
.badge-downloading {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge-done {
  background: var(--success-bg);
  color: var(--success);
}

.badge-error {
  background: var(--error-bg);
  color: var(--error);
}

/* ── Row action buttons ────────────────────────────────────────────────────── */

.row-btn {
  appearance: none;
  border: 1.5px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 600;
  font-family: inherit;
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  min-height: 32px;
  transition: background 130ms var(--ease-out), border-color 130ms var(--ease-out), transform 100ms var(--ease-out);
  touch-action: manipulation;
  box-shadow: var(--shadow-sm);
}

.row-btn:hover {
  background: var(--surface-2);
  border-color: rgba(0,0,0,0.2);
}

.row-btn:active { transform: scale(0.97); }

.row-btn:focus-visible {
  outline: 2px solid var(--accent-1);
  outline-offset: 2px;
}

.row-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.row-btn--primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 1px 6px rgba(99,102,241,0.26);
}

.row-btn--primary:hover {
  filter: brightness(1.08);
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
}

.saved-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--success);
}

.dl-dash { color: var(--text-faint); }

.dl-error-wrap { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.dl-error-text {
  font-size: 11px;
  color: var(--error);
  max-width: 180px;
  word-break: break-word;
  line-height: 1.4;
}

/* ── Empty state ──────────────────────────────────────────────────────────── */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: var(--text-faint);
  padding: 40px 24px;
}

.empty-state svg { color: var(--text-faint); opacity: 0.5; }

.empty-state p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 340px;
}

/* ── Key dialog ───────────────────────────────────────────────────────────── */

#key-dialog {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.14);
  padding: 20px;
  width: 280px;
  background: var(--surface);
  color: var(--text);
}

#key-dialog::backdrop {
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(2px);
}

.key-dialog-title {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

#key-dialog input[type="text"] {
  width: 100%;
  background: var(--surface-2);
  border: 1.5px solid var(--border-strong);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13.5px;
  font-family: inherit;
  margin-bottom: 12px;
}

#key-dialog input[type="text"]:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.18);
}

.key-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.key-dialog-actions button {
  appearance: none;
  border: 1.5px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 120ms var(--ease-out);
}

.key-dialog-actions button:hover { background: var(--surface-2); }

#key-dialog-confirm {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border-color: transparent;
  color: #fff;
}

#key-dialog-confirm:hover { filter: brightness(1.08); background: linear-gradient(135deg, var(--accent-1), var(--accent-2)); }
#key-dialog-confirm:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Platform badge ───────────────────────────────────────────────────────── */

.plat-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 3px;
}

.plat-facebook  { background: #e8f0fe; color: #1877F2; }
.plat-tiktok    { background: #f0f0f0; color: #111; }
.plat-youtube   { background: #fce8e8; color: #FF0000; }
.plat-instagram { background: #fce8f8; color: #C13584; }
.plat-other     { background: var(--neutral-bg); color: var(--text-muted); }

/* ── API docs ─────────────────────────────────────────────────────────────── */

.docs-card { padding: 0; overflow: hidden; }

.docs-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 24px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  user-select: none;
}
.docs-summary::-webkit-details-marker { display: none; }
.docs-summary svg { color: var(--accent-1); flex-shrink: 0; }

.docs-body {
  padding: 0 24px 24px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.docs-intro, .docs-p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 12px;
}

.docs-note {
  font-size: 13px;
  color: var(--warning);
  background: var(--warning-bg);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin: 0 0 18px;
  line-height: 1.55;
}

.docs-h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 24px 0 6px;
}
.docs-h3 code { font-size: 13px; }

.docs-p code, .docs-intro code {
  background: var(--neutral-bg);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 12.5px;
  font-family: "SF Mono", "Fira Code", monospace;
}

.docs-field { margin-bottom: 18px; }

.docs-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}

.docs-field-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.docs-status {
  font-size: 13px;
  color: var(--text-muted);
}
.docs-status.is-error { color: var(--error); }
.docs-status.is-ok { color: var(--success); }

.docs-code-wrap {
  position: relative;
  margin-bottom: 6px;
}

.docs-code {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-md);
  padding: 14px 84px 14px 16px;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 12.5px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}

.docs-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255,255,255,0.1);
  color: #e2e8f0;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms var(--ease-out);
}
.docs-copy-btn:hover { background: rgba(255,255,255,0.18); }
.docs-copy-btn.copied { background: var(--success); border-color: var(--success); color: white; }

/* ── Footer ───────────────────────────────────────────────────────────────── */

.footnote { display: none; }

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
  .page { padding: 20px 16px 48px; }
  .card { padding: 18px 16px; }
}

/* ── Reduced motion ───────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .progress-fill,
  .btn-primary,
  .row-btn {
    transition: none;
  }
  .progress-fill.is-indeterminate,
  .spinner {
    animation: none;
  }
}