:root {
  --aie-navy:   #1a3a5c;
  --aie-blue:   #2a6fbb;
  --aie-blue-l: #e8f2fc;
  --green:      #16a34a;
  --green-l:    #dcfce7;
  --amber:      #d97706;
  --amber-l:    #fef3c7;
  --red:        #dc2626;
  --red-l:      #fee2e2;
  --gray-50:    #f8fafc;
  --gray-100:   #f1f5f9;
  --gray-200:   #e2e8f0;
  --gray-400:   #94a3b8;
  --gray-600:   #475569;
  --gray-800:   #1e293b;
  --font:       'Segoe UI', Arial, sans-serif;
  --radius:     6px;
  --shadow:     0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

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

body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--gray-800);
  background: var(--gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--aie-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Banner ─────────────────────────────────── */
.demo-banner {
  background: var(--aie-navy);
  color: #fff;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.demo-badge {
  background: var(--aie-blue);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}
.demo-banner-title { font-size: 14px; font-weight: 600; flex: 1; }
.demo-banner-cta {
  background: #fff;
  color: var(--aie-navy);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background .14s, color .14s;
}
.demo-banner-cta:hover { background: var(--aie-blue); color: #fff; text-decoration: none; }

/* ── Page header ─────────────────────────────── */
.page-header {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.page-header h1 { font-size: 20px; font-weight: 700; color: var(--aie-navy); }
.page-header .meta { font-size: 12px; color: var(--gray-600); }

/* ── Main ────────────────────────────────────── */
.demo-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 16px 20px;
  gap: 16px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* ── Split layout ────────────────────────────── */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 14px;
  align-items: start;
}

/* ── Cards ───────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-header {
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-200);
  font-weight: 700;
  font-size: 11px;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: .05em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.card-body { padding: 16px; }

/* ── Stat boxes ──────────────────────────────── */
.stat-row { display: flex; gap: 12px; flex-wrap: wrap; }
.stat-box {
  flex: 1;
  min-width: 140px;
  background: var(--aie-navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 12px 16px;
}
.stat-box.stat-green  { background: var(--green); }
.stat-box.stat-amber  { background: var(--amber); }
.stat-box.stat-red    { background: var(--red); }
.stat-value { font-size: 24px; font-weight: 700; }
.stat-label { font-size: 11px; color: rgba(255,255,255,.75); margin-top: 2px; }

/* ── Badges ──────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-green  { background: var(--green-l); color: var(--green); }
.badge-amber  { background: var(--amber-l); color: var(--amber); }
.badge-red    { background: var(--red-l);   color: var(--red);   }
.badge-blue   { background: var(--aie-blue-l); color: var(--aie-blue); }
.badge-gray   { background: var(--gray-100); color: var(--gray-600); }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .12s, border-color .12s;
  white-space: nowrap;
}
.btn-primary   { background: var(--aie-blue); color: #fff; border-color: var(--aie-blue); }
.btn-primary:hover  { background: #1e5ca8; border-color: #1e5ca8; }
.btn-secondary { background: #fff; color: var(--gray-800); border-color: var(--gray-200); }
.btn-secondary:hover { background: var(--gray-100); }
.btn-green     { background: var(--green); color: #fff; border-color: var(--green); }
.btn-green:hover { background: #128a3a; }
.btn-amber     { background: var(--amber); color: #fff; border-color: var(--amber); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ── Tables ──────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--gray-600);
  padding: 8px 12px;
  text-align: left;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-100);
  font-size: 14px;
  vertical-align: middle;
}
.data-table tbody tr { cursor: pointer; transition: background .1s; }
.data-table tbody tr:hover  { background: var(--aie-blue-l); }
.data-table tbody tr.active { background: var(--aie-blue-l); }
.data-table tbody tr:last-child td { border-bottom: none; }
.col-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  text-align: right;
  white-space: nowrap;
}

/* ── Forms ───────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.form-label { font-size: 13px; font-weight: 500; color: var(--gray-600); }
.form-input, .form-select, .form-textarea {
  font-family: var(--font);
  font-size: 13px;
  padding: 7px 10px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: #fff;
  color: var(--gray-800);
  width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--aie-blue);
  box-shadow: 0 0 0 3px rgba(42,111,187,.12);
}
.form-textarea { resize: vertical; min-height: 80px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

/* ── Email preview box ───────────────────────── */
.email-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.email-subject {
  font-weight: 700;
  color: var(--aie-navy);
  font-size: 13px;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-200);
}

/* ── Empty state ─────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--gray-400);
}
.empty-state .empty-icon { font-size: 36px; margin-bottom: 10px; }
.empty-state p { font-size: 13px; }

/* ── Misc ────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--gray-200); margin: 12px 0; }
.text-right { text-align: right; }
.text-bold { font-weight: 700; }
.text-muted { color: var(--gray-600); }
.text-small { font-size: 12px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { display: flex; gap: 8px; align-items: center; }

/* ── Tour ────────────────────────────────────── */
.tour-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.38);
  z-index: 9000;
}
.tour-tooltip {
  display: none;
  position: absolute;
  z-index: 9100;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,.22);
  padding: 18px;
  max-width: 340px;
  min-width: 260px;
}
.tour-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--gray-800);
  margin-bottom: 14px;
}
.tour-nav { display: flex; align-items: center; gap: 8px; }
.tour-btn {
  background: var(--aie-navy);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 6px 12px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.tour-btn:disabled { background: var(--gray-200); color: var(--gray-400); cursor: default; }
.tour-btn-next { background: var(--aie-blue); margin-left: auto; }
.tour-counter { font-size: 12px; color: var(--gray-400); flex: 1; text-align: center; }
.tour-skip {
  display: block;
  margin-top: 10px;
  background: none;
  border: none;
  font-size: 11px;
  color: var(--gray-400);
  cursor: pointer;
  width: 100%;
  text-align: center;
  font-family: var(--font);
}
.tour-skip:hover { color: var(--gray-600); }
.tour-highlight {
  position: relative;
  z-index: 9050 !important;
  outline: 3px solid var(--aie-blue) !important;
  outline-offset: 2px;
  border-radius: var(--radius);
}

/* ── Footer ──────────────────────────────────── */
.demo-footer {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  padding: 14px 20px;
  text-align: center;
  font-size: 12px;
  color: var(--gray-600);
  margin-top: auto;
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 800px) {
  .split-layout { grid-template-columns: 1fr; }
  .form-row-2, .form-row-3 { grid-template-columns: 1fr; }
  .demo-main { padding: 10px 12px; }
  .stat-row { gap: 8px; }
}