:root {
  --bg: #0f172a;
  --card: #1e293b;
  --card2: #263449;
  --accent: #38bdf8;
  --accent2: #34d399;
  --gold: #fbbf24;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --danger: #f87171;
  --radius: 14px;
}

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

body {
  font-family: "Segoe UI", "Heebo", Arial, sans-serif;
  background: linear-gradient(160deg, #0f172a 0%, #1e1b4b 100%);
  color: var(--text);
  min-height: 100vh;
}

/* ===== Header ===== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: rgba(15, 23, 42, .8);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid #334155;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 2rem; }
.brand h1 { font-size: 1.4rem; color: var(--accent); }
.brand p { font-size: .8rem; color: var(--muted); }

.ai-toggle {
  background: linear-gradient(135deg, #7c3aed, #38bdf8);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform .15s;
}
.ai-toggle:hover { transform: scale(1.05); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #64748b; display: inline-block; }
.dot.on { background: #4ade80; box-shadow: 0 0 6px #4ade80; }
.dot.off { background: var(--danger); }

main { max-width: 1000px; margin: 28px auto; padding: 0 16px 80px; }

/* ===== Search card ===== */
.search-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
  border: 1px solid #334155;
}

.scope-tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.scope-tab {
  background: var(--card2);
  color: var(--muted);
  border: 1px solid #334155;
  padding: 8px 20px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1rem;
}
.scope-tab.active { background: var(--accent); color: #0f172a; font-weight: 700; border-color: var(--accent); }

.search-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr .8fr .8fr .8fr;
  gap: 12px;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: .8rem; color: var(--muted); }
.field input, .field select {
  background: var(--card2);
  border: 1px solid #334155;
  color: var(--text);
  border-radius: 8px;
  padding: 10px;
  font-size: .95rem;
  width: 100%;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); }
.field-dest input { margin-top: 6px; }

/* ===== Advanced ===== */
.advanced { margin-top: 16px; background: var(--card2); border-radius: 10px; border: 1px solid #334155; }
.advanced summary { padding: 12px 16px; cursor: pointer; color: var(--accent); font-weight: 600; }
.advanced-body { padding: 4px 16px 16px; display: flex; flex-direction: column; gap: 14px; }
.adv-title { font-size: .85rem; color: var(--muted); display: block; margin-bottom: 6px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--card);
  border: 1px solid #475569;
  color: var(--text);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  font-size: .9rem;
  transition: all .15s;
}
.chip:hover { border-color: var(--accent); }
.chip.active { background: var(--accent); color: #0f172a; font-weight: 700; border-color: var(--accent); }

.budget-group input[type=range] { width: 100%; accent-color: var(--accent2); }
#budgetLabel { color: var(--accent2); }

.search-btn {
  margin-top: 18px;
  width: 100%;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color: #0f172a;
  font-size: 1.15rem;
  font-weight: 800;
  border: none;
  border-radius: 10px;
  padding: 14px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
}
.search-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(56,189,248,.35); }

/* ===== Results ===== */
.results { margin-top: 26px; }
.results-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.results-header h2 { font-size: 1.2rem; }
.sort-row { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--muted); }
.sort-row select { background: var(--card2); color: var(--text); border: 1px solid #334155; border-radius: 8px; padding: 6px 10px; }

.save-search-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 4px 0 14px; }
.save-search-row input { flex: 1 1 220px; min-width: 180px; background: var(--card2); color: var(--text); border: 1px solid #475569; border-radius: 8px; padding: 9px 12px; }
.secondary-btn, .icon-btn { background: var(--card2); color: var(--text); border: 1px solid #475569; border-radius: 8px; padding: 9px 13px; cursor: pointer; }
.secondary-btn:hover, .icon-btn:hover { border-color: var(--accent); color: var(--accent); }

.smart-tip {
  background: linear-gradient(135deg, rgba(251,191,36,.12), rgba(56,189,248,.12));
  border: 1px solid rgba(251,191,36,.4);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 14px;
  font-size: .95rem;
  line-height: 1.6;
}
.smart-tip:empty { display: none; }

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

.result-card {
  display: grid;
  grid-template-columns: 52px 1.4fr 1fr 1fr auto;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border: 1px solid #334155;
  border-radius: var(--radius);
  padding: 14px 18px;
  transition: transform .12s, border-color .12s;
}
.result-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.result-card.best { border: 2px solid var(--accent2); background: linear-gradient(135deg, rgba(52,211,153,.08), var(--card)); }

.site-icon { font-size: 1.8rem; text-align: center; }
.site-name { font-weight: 700; font-size: 1.05rem; }
.site-tag { font-size: .78rem; color: var(--muted); }

.price-block { text-align: center; }
.price-main { font-size: 1.3rem; font-weight: 800; color: var(--accent2); }
.price-sub { font-size: .75rem; color: var(--muted); }

.score-block { text-align: center; }
.score-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .9rem;
}
.score-high { background: rgba(52,211,153,.2); color: var(--accent2); }
.score-mid { background: rgba(251,191,36,.15); color: var(--gold); }
.score-low { background: rgba(148,163,184,.15); color: var(--muted); }
.badges { margin-top: 4px; font-size: .72rem; color: var(--gold); }

.go-btn {
  background: var(--accent);
  color: #0f172a;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: transform .12s;
}
.go-btn:hover { transform: scale(1.06); }

.top-places {
  grid-column: 1 / -1;
  border-top: 1px solid #334155;
  padding-top: 12px;
}
.top-places-heading { font-weight: 700; margin-bottom: 8px; }
.top-places-heading span { color: var(--muted); font-size: .78rem; font-weight: 400; }
.top-places-list { display: grid; gap: 6px; }
.place-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  color: inherit;
  text-decoration: none;
  background: rgba(15, 23, 42, .42);
  border: 1px solid transparent;
  border-radius: 8px;
}
.place-row:hover { border-color: var(--accent); background: rgba(56, 189, 248, .08); }
.place-rank { color: var(--gold); font-weight: 800; text-align: center; }
.place-info strong, .place-price strong { display: block; }
.place-info small, .place-price small { color: var(--muted); font-size: .72rem; }
.place-price { text-align: left; white-space: nowrap; }
.place-price strong { color: var(--accent2); }
.places-note { color: var(--muted); font-size: .7rem; margin-top: 8px; }

.disclaimer { margin-top: 18px; font-size: .8rem; color: var(--muted); line-height: 1.6; }

.saved-section { margin-top: 24px; background: var(--card); border: 1px solid #334155; border-radius: var(--radius); padding: 20px; }
.section-heading, .comparison-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.eyebrow { color: var(--accent2); font-size: .78rem; margin-bottom: 4px; }
.section-heading h2, .comparison-heading h3 { font-size: 1.15rem; }
.saved-search-list { display: grid; gap: 9px; margin-top: 16px; }
.saved-item { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 10px; background: var(--card2); border: 1px solid #334155; border-radius: 10px; padding: 11px 13px; }
.saved-item strong { display: block; }
.saved-item small, #comparisonMeta { color: var(--muted); font-size: .78rem; }
.saved-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.saved-actions button { background: transparent; color: var(--text); border: 1px solid #475569; border-radius: 7px; padding: 6px 9px; cursor: pointer; }
.saved-actions button:hover { border-color: var(--accent); color: var(--accent); }
.comparison { margin-top: 22px; border-top: 1px solid #334155; padding-top: 18px; }
.comparison-table-wrap { overflow-x: auto; margin-top: 12px; }
.comparison-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: .86rem; }
.comparison-table th, .comparison-table td { text-align: right; padding: 9px 10px; border-bottom: 1px solid #334155; white-space: nowrap; }
.comparison-table th { color: var(--accent); background: rgba(56,189,248,.08); }
.comparison-table td:first-child { font-weight: 700; }
.comparison-table .best-cell { color: var(--accent2); font-weight: 700; }

/* ===== AI Panel ===== */
.ai-panel {
  position: fixed;
  bottom: 0;
  left: 20px;
  width: 400px;
  max-width: calc(100vw - 40px);
  height: 540px;
  max-height: 80vh;
  background: var(--card);
  border: 1px solid #475569;
  border-bottom: none;
  border-radius: 16px 16px 0 0;
  display: flex;
  flex-direction: column;
  box-shadow: 0 -8px 40px rgba(0,0,0,.5);
  transform: translateY(105%);
  transition: transform .3s ease;
  z-index: 100;
}
.ai-panel.open { transform: translateY(0); }

.ai-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, #7c3aed, #38bdf8);
  border-radius: 16px 16px 0 0;
  color: #fff;
  font-weight: 700;
}
.ai-header button { background: none; border: none; color: #fff; font-size: 1.1rem; cursor: pointer; }

.ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.msg {
  max-width: 88%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: .92rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.msg.user { background: var(--accent); color: #0f172a; align-self: flex-start; border-bottom-right-radius: 4px; }
.msg.assistant { background: var(--card2); align-self: flex-end; border-bottom-left-radius: 4px; }
.msg.error { background: rgba(248,113,113,.15); color: var(--danger); align-self: center; }
.msg.typing { color: var(--muted); font-style: italic; }
.msg strong { color: var(--accent); }

.ai-suggestions { display: flex; gap: 6px; padding: 0 12px 8px; flex-wrap: wrap; }
.sugg {
  background: var(--card2);
  border: 1px solid #475569;
  color: var(--muted);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: .78rem;
  cursor: pointer;
}
.sugg:hover { color: var(--accent); border-color: var(--accent); }

.ai-input-row {
  display: flex;
  gap: 8px;
  padding: 10px 12px 14px;
  border-top: 1px solid #334155;
}
.ai-input-row input {
  flex: 1;
  background: var(--card2);
  border: 1px solid #475569;
  color: var(--text);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: .95rem;
}
.ai-input-row input:focus { outline: 2px solid var(--accent); }
.ai-input-row button {
  background: var(--accent2);
  border: none;
  color: #0f172a;
  font-weight: 700;
  border-radius: 999px;
  padding: 10px 20px;
  cursor: pointer;
}

/* ===== Responsive ===== */
@media (max-width: 800px) {
  .search-grid { grid-template-columns: 1fr 1fr; }
  .field-dest { grid-column: 1 / -1; }
  .result-card { grid-template-columns: 40px 1fr auto; }
  .score-block { display: none; }
  .price-block { text-align: left; }
  .place-row { grid-template-columns: 26px 1fr; }
  .place-price { grid-column: 2; text-align: right; }
}