:root {
  --teal-950: #0a2226;
  --teal-900: #0d2b30;
  --teal-800: #123840;
  --teal-700: #17454f;
  --teal-500: #1f5c68;
  --accent: #2f9e8f;
  --accent-light: #6fc9bc;
  --cream: #f6f4ee;
  --ink: #16211f;
  --muted: #5c6b68;
  --border: #dde3df;
  --danger: #b3452f;
  --radius: 10px;
  font-family: 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

h1, h2, h3, .brand { font-family: 'Iowan Old Style', 'Palatino Linotype', Georgia, serif; }

a { color: var(--accent); }

/* ── Auth screen ─────────────────────────────────────────────────────────── */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 20%, var(--teal-700), var(--teal-950) 70%);
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
  padding: 36px 32px;
}

.brand-row { text-align: center; margin-bottom: 6px; }
.brand-row .dot { color: var(--accent); }
.brand-title { font-size: 26px; font-weight: 700; margin: 4px 0 2px; }
.brand-sub { text-align: center; color: var(--muted); font-size: 13.5px; margin-bottom: 24px; }

.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab {
  flex: 1; text-align: center; padding: 10px 0; cursor: pointer;
  font-size: 14px; color: var(--muted); border-bottom: 2px solid transparent;
}
.tab.active { color: var(--teal-900); border-bottom-color: var(--accent); font-weight: 600; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 5px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fbfbfa;
}
.field textarea { resize: vertical; min-height: 60px; }
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; max-height: 140px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.checkbox-grid label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink); font-weight: normal; }
.select-all-links { float: right; font-weight: normal; font-size: 12px; }
.select-all-links .btn-link { display: inline; font-size: 12px; }

.btn {
  width: 100%; padding: 12px; border: none; border-radius: 8px; font-size: 14.5px;
  font-weight: 600; cursor: pointer; background: var(--teal-800); color: #fff;
  transition: background .15s;
}
.btn:hover { background: var(--teal-700); }
.btn:disabled { opacity: .6; cursor: default; }
.btn-link { background: none; color: var(--accent); font-weight: 500; font-size: 13px; padding: 4px; width: auto; }

.msg { font-size: 13px; padding: 10px 12px; border-radius: 8px; margin-bottom: 14px; }
.msg.error { background: #fbebe6; color: var(--danger); }
.msg.ok { background: #eaf6f2; color: #1a7a63; }

.foot-link { text-align: center; margin-top: 14px; font-size: 13px; color: var(--muted); }

/* ── App shell ───────────────────────────────────────────────────────────── */

.app { display: none; height: 100vh; }
.app.active { display: flex; }

.sidebar {
  width: 300px; flex-shrink: 0; background: var(--teal-950); color: #dfe9e7;
  display: flex; flex-direction: column; padding: 20px 18px;
}
.sidebar .brand-title { color: #fff; font-size: 19px; margin: 0 0 2px; }
.sidebar .brand-sub { text-align: left; color: #93b0ac; margin-bottom: 20px; }

.side-section { margin-bottom: 22px; }
.side-section h3 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: #7fa39d; margin: 0 0 10px; font-family: inherit; }

.capability { display: flex; gap: 9px; align-items: flex-start; padding: 8px 0; font-size: 13px; color: #cfe1de; }
.capability .icon { font-size: 15px; margin-top: 1px; }

.prompt-chip {
  display: block; width: 100%; text-align: left; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1); color: #e4efed; padding: 9px 11px; border-radius: 8px;
  font-size: 12.5px; margin-bottom: 7px; cursor: pointer; transition: background .15s;
}
.prompt-chip:hover { background: rgba(255,255,255,.14); }

.side-scroll { overflow-y: auto; flex: 1; }

.sidebar-foot { border-top: 1px solid rgba(255,255,255,.12); padding-top: 14px; font-size: 12.5px; color: #9fbab5; }
.sidebar-foot .countries { color: #e4efed; }
.logout-link { color: #9fbab5; cursor: pointer; font-size: 12px; text-decoration: underline; }

.main {
  flex: 1; display: flex; flex-direction: column; background: var(--cream); min-width: 0;
}

.topbar {
  padding: 14px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; background: #fff;
}
.topbar h2 { margin: 0; font-size: 16px; }
.topbar .actions { display: flex; gap: 10px; }
.icon-btn { background: none; border: 1px solid var(--border); border-radius: 8px; padding: 7px 12px; cursor: pointer; font-size: 13px; color: var(--teal-800); }
.icon-btn:hover { background: #f0f5f3; }

.chat-scroll { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 16px; }

.bubble { max-width: 780px; padding: 14px 16px; border-radius: 12px; font-size: 14.5px; line-height: 1.55; }
.bubble.user { align-self: flex-end; background: var(--teal-800); color: #fff; }
.bubble.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--border); }
.bubble.status { align-self: flex-start; color: var(--muted); font-size: 13px; font-style: italic; background: none; padding: 0 4px; }

.bubble.assistant p { margin: 0 0 10px; }
.bubble.assistant p:last-child { margin-bottom: 0; }
.bubble.assistant h1, .bubble.assistant h2, .bubble.assistant h3 {
  font-family: inherit; font-size: 15px; margin: 14px 0 8px; color: var(--teal-900);
}
.bubble.assistant h1:first-child, .bubble.assistant h2:first-child, .bubble.assistant h3:first-child { margin-top: 0; }
.bubble.assistant ul, .bubble.assistant ol { margin: 0 0 10px; padding-left: 22px; }
.bubble.assistant li { margin-bottom: 4px; }
.bubble.assistant strong { color: var(--teal-900); }
.bubble.assistant code {
  background: #f3f1ea; padding: 1px 5px; border-radius: 4px; font-size: 13px;
}
.bubble.assistant table {
  border-collapse: collapse; width: 100%; margin: 8px 0 12px; font-size: 13px;
}
.bubble.assistant th, .bubble.assistant td {
  padding: 6px 10px; border: 1px solid var(--border); text-align: left;
}
.bubble.assistant th { background: #f3f1ea; font-weight: 600; }
.bubble.assistant table { display: block; overflow-x: auto; }

.result-table-wrap { overflow-x: auto; margin-top: 10px; border: 1px solid var(--border); border-radius: 8px; }
table.result-table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
table.result-table th, table.result-table td { padding: 6px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
table.result-table th { background: #f3f1ea; font-weight: 600; }

.chart-wrap { margin-top: 12px; background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.chart-wrap canvas { max-height: 320px; }
.map-wrap { height: 340px; border-radius: 8px; overflow: hidden; margin-top: 12px; border: 1px solid var(--border); }

.composer { padding: 16px 24px 22px; border-top: 1px solid var(--border); background: #fff; }
.composer form { display: flex; gap: 10px; max-width: 900px; margin: 0 auto; }
.composer input { flex: 1; padding: 12px 14px; border: 1px solid var(--border); border-radius: 24px; font-size: 14.5px; }
.composer button { background: var(--accent); color: #fff; border: none; border-radius: 24px; padding: 0 22px; font-weight: 600; cursor: pointer; }
.composer button:disabled { opacity: .55; }

/* ── Modal (coverage map) ────────────────────────────────────────────────── */

.modal-backdrop { display: none; position: fixed; inset: 0; background: rgba(10,34,38,.55); z-index: 50; align-items: center; justify-content: center; }
.modal-backdrop.active { display: flex; }
.modal { background: #fff; border-radius: var(--radius); width: min(920px, 92vw); max-height: 86vh; display: flex; flex-direction: column; overflow: hidden; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-body { padding: 16px 20px; overflow-y: auto; }
#coverage-map { height: 480px; border-radius: 8px; }
.close-x { cursor: pointer; font-size: 20px; color: var(--muted); background: none; border: none; }

@media (max-width: 760px) {
  .sidebar { display: none; }
  .bubble { max-width: 100%; }
}