:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #f59e0b;
  --accent-2: #fbbf24;
  --border: #334155;
  --danger: #ef4444;
  --ok: #22c55e;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overscroll-behavior-y: contain;
}

.sticky-search {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: max(10px, env(safe-area-inset-top)) 16px 10px 16px;
}

.topbar {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.topbar h1 {
  font-size: 17px;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.topbar .sub {
  font-size: 11px;
  color: var(--muted);
}

main {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
}

.sticky-search > * {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.mode-toggle {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.mode-btn {
  flex: 1;
  padding: 9px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  min-height: 40px;
}

.mode-btn.active {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent);
  color: var(--accent-2);
}

.ai-answer {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.5;
}

.ai-answer .ai-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--accent-2);
  margin-bottom: 6px;
}

.search-box {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.search-box input[type="text"] {
  flex: 1;
  font-size: 17px;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
}

.search-box input[type="text"]:focus {
  outline: 2px solid var(--accent);
}

.search-box button {
  font-size: 15px;
  padding: 14px 18px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #1a1200;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  min-height: 48px;
}

.search-box input[type="text"] {
  min-width: 0;
  min-height: 48px;
}

@media (max-width: 360px) {
  .search-box button {
    padding: 14px 14px;
    font-size: 14px;
  }
}

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filters select {
  flex: 1;
  min-width: 140px;
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 15px;
}

.status-line {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
  min-height: 18px;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.result-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: block;
  text-decoration: none;
  color: var(--text);
}

.result-card:active {
  background: var(--panel-2);
}

.result-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-2);
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.badge.category {
  background: rgba(148, 163, 184, 0.12);
  color: var(--muted);
  border-color: var(--border);
}

.badge.badge-video {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.result-filename {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
  word-break: break-word;
}

.result-snippet {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.result-snippet mark {
  background: rgba(245, 158, 11, 0.35);
  color: var(--text);
  padding: 0 2px;
  border-radius: 3px;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 40px 16px;
  font-size: 14px;
}

.file-size {
  font-size: 11px;
  color: var(--muted);
  margin-left: auto;
}

footer {
  text-align: center;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

footer a { color: var(--muted); }

/* Admin login screen */
.login-screen {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px calc(24px + env(safe-area-inset-bottom));
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  text-align: center;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.5);
}

.login-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.login-title {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 6px 0;
}

.login-sub {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.login-card input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  margin-bottom: 12px;
  font-size: 16px;
  text-align: center;
}

.login-card input:focus {
  outline: 2px solid var(--accent);
}

.login-card button {
  width: 100%;
  min-height: 48px;
  padding: 14px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #1a1200;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
}

.login-error {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
  margin: 14px 0 0 0;
}

.login-footer {
  margin-top: 20px;
  font-size: 12px;
  color: var(--muted);
}

.lock-btn {
  margin-left: auto;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
}
.lock-btn:hover {
  color: var(--text);
  border-color: var(--muted);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.stat-card .num { font-size: 24px; font-weight: 800; color: var(--accent-2); }
.stat-card .label { font-size: 12px; color: var(--muted); margin-top: 2px; }

section.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
section.panel h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
  margin: 0 0 10px 0;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
tr.zero td.result_count { color: var(--danger); font-weight: 700; }

.export-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--accent-2);
}