:root {
  --glass:        rgba(255, 255, 255, 0.07);
  --glass-mid:    rgba(255, 255, 255, 0.11);
  --glass-strong: rgba(255, 255, 255, 0.16);
  --glass-border: rgba(255, 255, 255, 0.14);
  --blur:         blur(18px);
  --text:         rgba(255, 255, 255, 0.95);
  --muted:        rgba(255, 255, 255, 0.48);
  --radius:       16px;
  --radius-sm:    10px;
  --success:      #34d399;
  --warning:      #fbbf24;
  --danger:       #f87171;
  --primary:      #818cf8;
  --primary-glow: rgba(129, 140, 248, 0.35);
}

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

/* ── BACKGROUND ─────────────────────────────────────────── */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  color: var(--text);
  min-height: 100vh;
  background: #0d0d1a;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

body::before {
  width: 600px; height: 600px;
  top: -150px; left: -150px;
  background: radial-gradient(circle, #4f46e5, transparent 70%);
}

body::after {
  width: 500px; height: 500px;
  bottom: -100px; right: -100px;
  background: radial-gradient(circle, #7c3aed, transparent 70%);
}

/* extra orb */
.orb {
  position: fixed;
  width: 350px; height: 350px;
  top: 45%; left: 55%;
  border-radius: 50%;
  background: radial-gradient(circle, #0ea5e9, transparent 70%);
  filter: blur(80px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

/* ── TOPBAR ──────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 28px;
  height: 60px;
  background: rgba(13, 13, 26, 0.65);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--glass-border);
}

.brand {
  color: white;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  white-space: nowrap;
  background: linear-gradient(90deg, #a5b4fc, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar nav { display: flex; gap: 4px; }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 7px 15px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.2px;
  transition: all 0.18s;
  border: 1px solid transparent;
}

.topbar nav a:hover {
  color: white;
  background: var(--glass-mid);
  border-color: var(--glass-border);
}

.topbar nav a.active {
  color: white;
  background: var(--glass-strong);
  border-color: rgba(129, 140, 248, 0.4);
  box-shadow: 0 0 16px var(--primary-glow);
}

/* ── LAYOUT ──────────────────────────────────────────────── */
main {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px;
}

.page { display: none; }
.page.active { display: block; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}
.page-header h2 {
  font-size: 20px;
  font-weight: 800;
  color: white;
}

/* ── GLASS MIXIN (reusable panel) ────────────────────────── */
.glass {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

/* ── COHORT HEADER ───────────────────────────────────────── */
.cohort-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.cohort-header h1 {
  font-size: 24px;
  font-weight: 900;
  color: white;
  letter-spacing: -0.3px;
}

.cohort-meta {
  color: var(--muted);
  font-size: 13px;
  margin-top: 5px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.cohort-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* ── STATS ───────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.18s, box-shadow 0.18s;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--primary);
  border-radius: 2px 0 0 2px;
}
.stat-card.green::before  { background: var(--success); }
.stat-card.red::before    { background: var(--danger); }
.stat-card.amber::before  { background: var(--warning); }

.stat-num {
  font-size: 21px;
  font-weight: 800;
  color: white;
  line-height: 1.2;
}
.stat-label {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* ── SECTION / TABLE PANEL ───────────────────────────────── */
.section {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 22px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass-mid);
}
.section-header h3 {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── TABLES ──────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }

.data-table th {
  background: rgba(255,255,255,0.04);
  text-align: left;
  padding: 10px 14px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--muted);
  border-bottom: 1px solid var(--glass-border);
}

.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  vertical-align: middle;
  color: rgba(255,255,255,0.85);
}

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

.data-table tbody tr {
  transition: background 0.15s;
}
.data-table tbody tr:hover {
  background: rgba(255,255,255,0.05);
}

.data-table .empty {
  text-align: center;
  color: var(--muted);
  padding: 40px;
  font-size: 13px;
}

.total-row {
  padding: 13px 18px;
  text-align: right;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
}
.total-row strong { color: white; font-size: 15px; }

/* ── BADGES ──────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  white-space: nowrap;
  border: 1px solid transparent;
}

.badge-paid        { background: rgba(52,211,153,0.15); color: #34d399; border-color: rgba(52,211,153,0.25); }
.badge-booking_only{ background: rgba(251,191,36,0.15);  color: #fbbf24; border-color: rgba(251,191,36,0.25); }
.badge-unpaid      { background: rgba(248,113,113,0.15); color: #f87171; border-color: rgba(248,113,113,0.25); }
.badge-confirm     { background: rgba(129,140,248,0.15); color: #a5b4fc; border-color: rgba(129,140,248,0.25); }
.badge-pending     { background: rgba(251,191,36,0.15);  color: #fbbf24; border-color: rgba(251,191,36,0.25); }
.badge-upcoming    { background: rgba(56,189,248,0.15);  color: #38bdf8; border-color: rgba(56,189,248,0.25); }
.badge-ongoing     { background: rgba(52,211,153,0.15);  color: #34d399; border-color: rgba(52,211,153,0.25); }
.badge-completed   { background: rgba(255,255,255,0.08); color: var(--muted); border-color: var(--glass-border); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #818cf8);
  color: white;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  box-shadow: 0 4px 15px var(--primary-glow);
  letter-spacing: 0.2px;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--primary-glow);
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--glass-mid);
  color: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}
.btn-secondary:hover {
  background: var(--glass-strong);
  color: white;
  border-color: rgba(255,255,255,0.25);
}

.btn-danger {
  background: rgba(248,113,113,0.15);
  color: #f87171;
  border: 1px solid rgba(248,113,113,0.25);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}
.btn-danger:hover {
  background: rgba(248,113,113,0.25);
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
  padding: 5px 7px;
  border-radius: 7px;
  opacity: 0.65;
  transition: all 0.15s;
}
.btn-icon:hover        { opacity: 1; background: var(--glass-mid); }
.btn-icon.danger:hover { background: rgba(248,113,113,0.15); }

/* ── COHORT CARDS ────────────────────────────────────────── */
.cohort-cards { display: grid; gap: 14px; }

.cohort-card {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all 0.2s;
  flex-wrap: wrap;
}
.cohort-card:hover {
  background: var(--glass-mid);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}

.cohort-card-left h3 { font-size: 15px; font-weight: 700; color: white; margin-bottom: 5px; }
.cohort-card-left p  { font-size: 12px; color: var(--muted); }

.cohort-card-stats   { display: flex; gap: 28px; flex-wrap: wrap; }
.card-stat           { text-align: center; }
.card-stat-num       { font-size: 16px; font-weight: 800; color: white; }
.card-stat-label     { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 2px; }

.cohort-card-actions { display: flex; gap: 8px; }

/* ── PROSPECT CARDS ──────────────────────────────────────── */
.prospect-cards { display: grid; gap: 12px; }

.prospect-card {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  transition: all 0.18s;
}
.prospect-card:hover {
  background: var(--glass-mid);
  border-color: rgba(255,255,255,0.2);
}

.prospect-info h4 { font-size: 14px; font-weight: 700; color: white; margin-bottom: 4px; }
.prospect-info p  { font-size: 12px; color: var(--muted); }
.prospect-actions { display: flex; gap: 6px; flex-shrink: 0; }

/* ── EMPTY STATE ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 70px 20px;
  color: var(--muted);
}
.empty-state h2   { font-size: 20px; margin-bottom: 10px; color: rgba(255,255,255,0.8); }
.empty-state p    { margin-bottom: 20px; }

/* ── MODAL ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}
.modal-overlay.hidden { display: none; }

.modal {
  background: rgba(15, 12, 40, 0.75);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 20px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05) inset;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.modal-header h3 { font-size: 16px; font-weight: 700; color: white; }

.modal-close {
  background: var(--glass-mid);
  border: 1px solid var(--glass-border);
  font-size: 16px;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
  padding: 5px 8px;
  border-radius: 7px;
  transition: all 0.15s;
}
.modal-close:hover { background: var(--glass-strong); color: white; }

.modal-body { padding: 22px; }

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ── FORMS ───────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 7px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 13px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: white;
  background: rgba(255,255,255,0.07);
  transition: all 0.18s;
}
.form-group select option { background: #1e1b4b; color: white; }

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.3); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(129,140,248,0.6);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(129,140,248,0.15);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ── REPORT ──────────────────────────────────────────────── */
.report-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

/* ── LOADING ─────────────────────────────────────────────── */
.loading {
  text-align: center;
  padding: 60px;
  color: var(--muted);
  font-size: 14px;
}

/* ── TOAST ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 12, 40, 0.9);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  color: white;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 2000;
  transition: opacity 0.25s;
}
.toast.hidden  { opacity: 0; pointer-events: none; }
.toast.success { border-color: rgba(52,211,153,0.4); box-shadow: 0 8px 32px rgba(52,211,153,0.15); }
.toast.error   { border-color: rgba(248,113,113,0.4); box-shadow: 0 8px 32px rgba(248,113,113,0.15); }

/* ── SCROLLBAR ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ── CONVERT LABEL ───────────────────────────────────────── */
.convert-label { font-size: 13px; color: var(--muted); margin-bottom: 14px; }

/* ── SMALL BUTTON ────────────────────────────────────────── */
.btn-sm { padding: 6px 13px; font-size: 12px; }

/* ── FORM ACTIONS ────────────────────────────────────────── */
.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--glass-border);
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .form-row          { grid-template-columns: 1fr; }
  .cohort-header     { flex-direction: column; }
  .cohort-card       { flex-direction: column; align-items: flex-start; }
  .stats-row         { grid-template-columns: 1fr 1fr; }
}