/* ============================================================
   ระบบตั๋วหนังนิเทศฯ จุฬา — Stylesheet v2
   ============================================================ */

:root {
  --primary:      #4f46e5;
  --primary-dark: #3730a3;
  --secondary:    #7c3aed;
  --success:      #16a34a;
  --danger:       #dc2626;
  --light-bg:     #f8f7ff;
  --card-shadow:  0 2px 16px rgba(79,70,229,.10);
}

body { background:#f5f5f8; font-family:'Sarabun',Arial,sans-serif; }
.fw-600 { font-weight:600; }
.fw-700 { font-weight:700; }

/* ── Navbar ───────────────────────────────────────────── */
.bg-primary-custom { background:linear-gradient(135deg,var(--primary),var(--secondary)) !important; }
.navbar-brand { font-size:1.2rem; }

/* ── Cards ────────────────────────────────────────────── */
.card { border:none; box-shadow:var(--card-shadow); border-radius:12px; }
.card-header {
  background:var(--light-bg); border-bottom:1px solid #e5e7eb;
  font-weight:600; border-radius:12px 12px 0 0 !important;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn-primary            { background:var(--primary);      border-color:var(--primary); }
.btn-primary:hover      { background:var(--primary-dark); border-color:var(--primary-dark); }
.btn-outline-primary    { color:var(--primary); border-color:var(--primary); }
.btn-outline-primary:hover { background:var(--primary); color:#fff; }

/* ── Event cards ──────────────────────────────────────── */
.event-card { transition:transform .2s,box-shadow .2s; cursor:pointer; }
.event-card:hover { transform:translateY(-4px); box-shadow:0 8px 30px rgba(79,70,229,.18); }
.event-poster { width:100%; height:220px; object-fit:cover; border-radius:12px 12px 0 0; }
.event-poster-placeholder {
  width:100%; height:220px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex; align-items:center; justify-content:center;
  font-size:60px; color:rgba(255,255,255,.6); border-radius:12px 12px 0 0;
}

/* ── Step indicator ───────────────────────────────────── */
.step-indicator { display:flex; align-items:center; justify-content:center; margin-bottom:32px; }
.step { display:flex; flex-direction:column; align-items:center; gap:6px; }
.step-circle {
  width:36px; height:36px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:14px; background:#e5e7eb; color:#9ca3af;
}
.step.active .step-circle { background:var(--primary); color:#fff; }
.step.done   .step-circle { background:var(--success);  color:#fff; }
.step-label { font-size:12px; color:#6b7280; white-space:nowrap; }
.step.active .step-label  { color:var(--primary); font-weight:600; }
.step-line { flex:1; height:2px; background:#e5e7eb; margin:0 8px; margin-bottom:22px; }
.step-line.done { background:var(--success); }

/* ── Tier badges ──────────────────────────────────────── */
.tier-badge {
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 14px; border-radius:20px; font-size:13px; font-weight:600;
}
.tier-1 { background:#dcfce7; color:#15803d; }
.tier-2 { background:#dbeafe; color:#1d4ed8; }
.tier-3 { background:#fef9c3; color:#a16207; }
.tier-4 { background:#fee2e2; color:#b91c1c; }

/* ── Screen label ─────────────────────────────────────── */
.screen-label {
  background:linear-gradient(to bottom,#c7d2fe,#e0e7ff);
  border-radius:40% 40% 8px 8px / 20px 20px 4px 4px;
  text-align:center; padding:10px 0 6px;
  font-size:13px; font-weight:600; color:#4f46e5;
  letter-spacing:2px; box-shadow:0 4px 16px rgba(79,70,229,.2);
}

/* ── Seat map container ───────────────────────────────── */
.seat-map { display:flex; flex-direction:column; gap:5px; align-items:center; }
.seat-row { display:flex; align-items:center; gap:3px; }
.row-label {
  width:28px; min-width:28px; text-align:center;
  font-size:11px; font-weight:700; color:#6b7280;
}

/* ── Base seat ────────────────────────────────────────── */
.seat {
  width:32px; height:32px;
  border-radius:3px 3px 10px 10px;
  border:2px solid rgba(0,0,0,.12);
  border-bottom-width:4px;
  background:#fff;
  display:flex; align-items:center; justify-content:center;
  font-size:9px; font-weight:700; color:#374151;
  cursor:pointer; transition:all .12s;
  flex-shrink:0; user-select:none; position:relative;
}

/* Hover — only available */
.seat:hover:not(.booked):not(.locked):not(.restricted):not(.gap):not(.checked-in):not(.unavailable) {
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(79,70,229,.35);
  transform:scale(1.12);
}

/* ── Seat states ──────────────────────────────────────── */
.seat.selected {
  background:var(--primary)      !important;
  border-color:var(--primary-dark) !important;
  color:#fff !important;
}
.seat.booked {
  background:#fca5a5   !important;
  border-color:#ef4444 !important;
  color:#7f1d1d        !important;
  cursor:not-allowed;
}
.seat.locked {
  background:#fde68a   !important;
  border-color:#f59e0b !important;
  color:#78350f        !important;
  cursor:not-allowed;
}
.seat.checked-in {
  background:#6ee7b7   !important;
  border-color:#10b981 !important;
  color:#064e3b        !important;
  cursor:not-allowed;
}
.seat.unavailable {
  background:#e5e7eb   !important;
  border-color:#d1d5db !important;
  color:#9ca3af        !important;
  cursor:not-allowed;
}

/* ── Tier-restricted ──────────────────────────────────── */
.seat.restricted {
  background: repeating-linear-gradient(
    45deg, #f3f4f6, #f3f4f6 3px, #e5e7eb 3px, #e5e7eb 6px
  ) !important;
  border-color:#d1d5db !important;
  color:#9ca3af        !important;
  cursor:not-allowed;
  opacity:.6;
}
.seat.restricted:hover { transform:none !important; box-shadow:none !important; }

/* ── VIP ring ─────────────────────────────────────────── */
.seat.vip-seat { box-shadow:0 0 0 2px #f59e0b inset; }

/* ── Gap แนวนอนระหว่างกลุ่มแถว (row_group) ──────────────── */
.row-group-gap { width:100%; height:20px; flex-shrink:0; }

/* ── Gap / aisle ──────────────────────────────────────── */
.seat.gap { visibility:hidden; pointer-events:none; }

/* ── Legend ───────────────────────────────────────────── */
.seat-legend { display:flex; flex-wrap:wrap; gap:12px; justify-content:center; }
.legend-item { display:flex; align-items:center; gap:6px; font-size:12px; color:#6b7280; }
.legend-box  { width:18px; height:18px; border-radius:2px 2px 7px 7px; border:2px solid rgba(0,0,0,.15); border-bottom-width:3px; flex-shrink:0; }
.restricted-box {
  background:repeating-linear-gradient(45deg,#f3f4f6,#f3f4f6 3px,#e5e7eb 3px,#e5e7eb 6px);
  border-color:#d1d5db;
}

/* ── Slip upload ──────────────────────────────────────── */
.upload-area {
  border:2px dashed #c7d2fe; border-radius:12px;
  padding:40px; text-align:center; cursor:pointer;
  transition:all .2s; background:var(--light-bg);
}
.upload-area:hover, .upload-area.dragover { border-color:var(--primary); background:#eef2ff; }

/* ── Footer ───────────────────────────────────────────── */
.footer { background:#fff; border-top:1px solid #e5e7eb; }

/* ── Ticket ───────────────────────────────────────────── */
.ticket-wrap {
  max-width:480px; margin:auto; background:#fff;
  border-radius:16px; box-shadow:0 8px 40px rgba(79,70,229,.15); overflow:hidden;
}
.ticket-header {
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff; padding:28px; text-align:center;
}
.ticket-body    { padding:28px; }
.ticket-qr      { text-align:center; margin:20px 0; }
.ticket-qr img  { width:160px; height:160px; border:4px solid #e0e7ff; border-radius:8px; padding:4px; }
.booking-code   { font-size:22px; font-weight:700; color:var(--primary); letter-spacing:2px; text-align:center; }
.ticket-divider { border:none; border-top:2px dashed #e5e7eb; margin:20px 0; }

/* ── Admin sidebar ────────────────────────────────────── */
.admin-sidebar { background:#1e1b4b; min-height:100vh; }
.admin-sidebar .nav-link { color:#a5b4fc; padding:10px 16px; border-radius:8px; }
.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active { background:rgba(255,255,255,.1); color:#fff; }
.admin-sidebar .nav-link i { width:20px; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width:768px) {
  .seat { width:26px; height:26px; font-size:7px; }
  .row-label { width:22px; font-size:10px; }
  .seat-map { gap:4px; }
  .seat-row { gap:2px; }
}
@media (max-width:480px) {
  .seat { width:22px; height:22px; font-size:6px; }
}
@media print {
  .navbar, footer, .btn, .alert:not(.alert-warning) { display:none !important; }
  .ticket-wrap { box-shadow:none !important; }
}