:root {
  --bg: #0b1220;
  --surface: #13202d;
  --border: #243447;
  --text: #e8eef6;
  --text-dim: #8aa0b8;
  --primary: #22c55e;
  --accent: #3b82f6;
  --danger: #ef4444;
  --warn: #f59e0b;
  --sidebar-w: 250px;
  --shadow: 0 18px 40px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text); min-height: 100vh;
}
a { color: var(--accent); }
.btn {
  border: 1px solid var(--border); background: #1a2a3a; color: var(--text);
  border-radius: 10px; padding: 10px 14px; font-weight: 600; cursor: pointer;
}
.btn.primary { background: var(--primary); color: #052e16; border-color: transparent; }
.btn.danger { background: #3a1414; border-color: #5b2222; color: #fca5a5; }
.btn.sm { padding: 6px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 18px; box-shadow: var(--shadow);
}
.muted { color: var(--text-dim); }
.pill {
  display: inline-block; padding: 3px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700;
}
.pill.green { background: rgba(34,197,94,.15); color: #86efac; }
.pill.amber { background: rgba(245,158,11,.15); color: #fcd34d; }
.pill.red { background: rgba(239,68,68,.15); color: #fca5a5; }
.pill.blue { background: rgba(59,130,246,.15); color: #93c5fd; }
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
.tbl th { color: var(--text-dim); font-size: 12px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--border); background: #0f172a; color: var(--text);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.stat { padding: 16px; }
.stat .label { color: var(--text-dim); font-size: 12px; }
.stat .value { font-size: 24px; font-weight: 800; margin-top: 4px; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.topbar h2 { margin: 0; }
.subtitle { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.loading, .empty { padding: 24px; color: var(--text-dim); text-align: center; }

.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
  background: radial-gradient(ellipse at 20% 10%, rgba(34,197,94,.18), transparent 45%),
              radial-gradient(ellipse at 80% 90%, rgba(59,130,246,.15), transparent 40%),
              linear-gradient(160deg, #0b1220, #13202d);
}
.login-card {
  width: 100%; max-width: 400px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 18px; padding: 32px;
}
.login-card h1 { text-align: center; margin: 8px 0 4px; }
.login-card .sub { text-align: center; color: var(--text-dim); margin: 0 0 22px; font-size: 14px; }
.login-logo { font-size: 42px; text-align: center; }
.login-error {
  background: #3a1414; border: 1px solid #5b2222; color: #fca5a5;
  padding: 10px; border-radius: 10px; margin-bottom: 14px; font-size: 13px;
}

.layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, #13202d, #101b26);
  border-right: 1px solid var(--border); padding: 18px 14px;
  position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 4px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 10px 18px; }
.brand .logo { font-size: 26px; }
.brand .name { font-weight: 800; }
.brand .name small { display: block; font-weight: 500; font-size: 11px; color: var(--text-dim); }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 10px;
  color: var(--text-dim); font-weight: 600; font-size: 14px; cursor: pointer;
}
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: var(--primary); color: #052e16; }
.spacer { flex: 1; }
.user-box { padding: 12px; border-top: 1px solid var(--border); margin-top: 10px; }
.main { padding: 22px; }
.toast-wrap { position: fixed; right: 16px; bottom: 16px; z-index: 50; display: flex; flex-direction: column; gap: 8px; }
.toast { background: #14532d; border: 1px solid #166534; padding: 10px 14px; border-radius: 10px; font-size: 13px; }
.toast.error { background: #3a1414; border-color: #5b2222; color: #fca5a5; }
.toast.warn { background: #422006; border-color: #854d0e; color: #fcd34d; }
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.55); display: grid; place-items: center;
  z-index: 40; padding: 16px;
}
.modal {
  width: min(720px, 100%); background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; max-height: 90vh; overflow: auto;
}
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.modal-body { padding: 16px; }
.modal-foot { padding: 12px 16px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.x-close { background: transparent; border: 0; color: var(--text-dim); font-size: 22px; cursor: pointer; }

.design-layout { display: flex; flex-direction: column; gap: 16px; }
.design-controls { max-width: 720px; }
.design-checks { display: flex; flex-wrap: wrap; gap: 14px 18px; align-items: center; }
.design-checks label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); cursor: pointer; }
.design-previews {
  display: grid; grid-template-columns: 1.4fr 0.9fr; gap: 16px; align-items: start;
}
.prev-title { margin: 0 0 10px; font-size: 14px; color: var(--text-dim); font-weight: 700; }
.prev-stage {
  background: #1a2433; border: 1px dashed var(--border); border-radius: 12px;
  padding: 16px; overflow: auto; max-height: 70vh;
}
.prev-sheet {
  background: #fff; color: #111; border-radius: 4px; box-shadow: 0 8px 24px rgba(0,0,0,.35);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif; font-size: 11px; line-height: 1.35;
}
.prev-sheet.a4 { width: min(100%, 520px); min-height: 680px; margin: 0 auto; }
.prev-sheet.ticket { margin: 0 auto; min-height: 360px; }
.prev-a4-head { display: grid; grid-template-columns: 1.4fr auto 1fr; gap: 10px; align-items: start; }
.prev-letter { text-align: center; }
.prev-letter-box {
  width: 42px; height: 42px; border: 2px solid #111; display: grid; place-items: center;
  font-size: 22px; font-weight: 800; margin: 0 auto 4px;
}
.prev-biz { font-weight: 800; font-size: 13px; margin-bottom: 2px; }
.prev-muted { color: #555; font-size: 10px; }
.prev-section { margin: 10px 0; }
.prev-tbl { width: 100%; border-collapse: collapse; margin: 8px 0; }
.prev-tbl th, .prev-tbl td { border-bottom: 1px solid #ddd; padding: 4px 2px; text-align: left; font-size: 10px; }
.prev-tbl th:last-child, .prev-tbl td:last-child { text-align: right; }
.prev-total { font-weight: 800; text-align: right; margin: 8px 0; font-size: 13px; }
.prev-footer { display: flex; justify-content: space-between; align-items: end; margin-top: 16px; gap: 12px; }
.prev-qr {
  width: 64px; height: 64px; border: 1px dashed #999; display: grid; place-items: center;
  color: #888; font-size: 10px; font-weight: 700;
}
.prev-brand { margin-top: 12px; color: #888; font-size: 9px; text-align: left; }
.prev-line { display: flex; justify-content: space-between; gap: 8px; margin: 3px 0; font-size: 10px; }
.prev-logo { margin-bottom: 6px; }
.prev-sheet hr { border: 0; border-top: 1px solid #ccc; margin: 8px 0; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .design-previews { grid-template-columns: 1fr; }
}