:root {
  --primary: #7a1f3d;
  --primary-dark: #5c1730;
  --primary-light: #f3e3e8;
  --accent: #c99a3a;
  --success: #1e8e5a;
  --danger: #c0392b;
  --warning: #b8860b;
  --bg: #f6f4f2;
  --surface: #ffffff;
  --text: #23272f;
  --text-muted: #6b7280;
  --border: #e5e2df;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
}

a { color: var(--primary); text-decoration: none; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--primary-dark);
  color: #fff;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  transition: transform 0.2s ease;
  z-index: 50;
}
.sidebar .brand {
  padding: 20px 16px;
  font-size: 18px;
  font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.sidebar .brand span { display: block; font-size: 12px; font-weight: 400; opacity: 0.75; }
.sidebar nav { flex: 1; overflow-y: auto; padding: 10px 0; }
.sidebar a.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 18px; color: rgba(255,255,255,0.85); font-size: 14px;
  border-left: 3px solid transparent;
}
.sidebar a.nav-link:hover { background: rgba(255,255,255,0.08); }
.sidebar a.nav-link.active { background: rgba(255,255,255,0.14); border-left-color: var(--accent); color: #fff; font-weight: 600; }
.sidebar .user-box { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.12); font-size: 13px; }
.sidebar .user-box .role-badge {
  display: inline-block; margin-top: 4px; font-size: 11px; padding: 2px 8px;
  background: var(--accent); color: #2b2200; border-radius: 20px; font-weight: 600;
}
.sidebar button.logout-btn {
  width: 100%; margin-top: 8px; background: transparent; border: 1px solid rgba(255,255,255,0.3);
  color: #fff; padding: 6px; border-radius: 6px; cursor: pointer; font-size: 12px;
}

.main-content { margin-left: 240px; flex: 1; padding: 24px 28px 60px; width: 100%; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px;
}
.topbar h1 { font-size: 22px; margin: 0; }
.topbar .subtitle { color: var(--text-muted); font-size: 13px; margin-top: 2px; }
.menu-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; }

.card {
  background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; border: 1px solid var(--border);
}

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-5 { grid-template-columns: repeat(5, 1fr); }

.stat-card { padding: 18px; }
.stat-card .label { color: var(--text-muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-card .value { font-size: 26px; font-weight: 700; margin-top: 6px; color: var(--primary-dark); }
.stat-card .sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table th, table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
table th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; background: #faf9f8; }
table tr:hover td { background: #fbf7f4; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge.active, .badge.success { background: #e2f6ec; color: var(--success); }
.badge.draft { background: #eef0f2; color: #555; }
.badge.completed { background: #e6f0fb; color: #205493; }
.badge.cancelled, .badge.voided { background: #fbe7e5; color: var(--danger); }
.badge.cash { background: #eaf7ee; color: var(--success); }
.badge.upi { background: #eef2fc; color: #3a52c4; }
.badge.bank-transfer { background: #fdf3e0; color: var(--warning); }
.badge.other { background: #f0eef2; color: #6a4c93; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px; border: none; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: transform 0.05s ease, box-shadow 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn.btn-primary { background: var(--primary); color: #fff; }
.btn.btn-primary:hover { background: var(--primary-dark); }
.btn.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn.btn-danger { background: var(--danger); color: #fff; }
.btn.btn-success { background: var(--success); color: #fff; }
.btn.btn-block { width: 100%; }
.btn.btn-lg { padding: 16px; font-size: 18px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #444; }
.form-control {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: #fff; color: var(--text);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row > .form-group { flex: 1; min-width: 180px; }
.help-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.error-text { font-size: 12.5px; color: var(--danger); margin-top: 4px; }

.radio-group { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-pill {
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 16px; cursor: pointer;
  font-weight: 600; font-size: 14px; user-select: none;
}
.radio-pill.selected { border-color: var(--primary); background: var(--primary-light); color: var(--primary-dark); }

.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 14px; }
.alert-error { background: #fbe7e5; color: var(--danger); }
.alert-success { background: #e2f6ec; color: var(--success); }
.alert-info { background: #eef2fc; color: #3a52c4; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,15,10,0.5); display: flex; align-items: center;
  justify-content: center; z-index: 200; padding: 16px;
}
.modal { background: #fff; border-radius: 12px; padding: 24px; max-width: 480px; width: 100%; box-shadow: var(--shadow-lg); }
.modal h3 { margin-top: 0; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 16px; }
.login-card { background: #fff; border-radius: 14px; padding: 36px 32px; width: 100%; max-width: 400px; box-shadow: var(--shadow-lg); }
.login-card h1 { text-align: center; font-size: 20px; margin-bottom: 2px; color: var(--primary-dark); }
.login-card .tagline { text-align: center; color: var(--text-muted); font-size: 13px; margin-bottom: 24px; }

.counter-screen { max-width: 640px; margin: 0 auto; }
.counter-screen .amount-input {
  font-size: 34px; font-weight: 700; text-align: center; padding: 16px; color: var(--primary-dark);
}
.result-card { text-align: center; padding: 30px 20px; }
.result-card .check { font-size: 48px; color: var(--success); }
.result-card .receipt-line { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 15px; }
.result-card .receipt-line .label { color: var(--text-muted); }

.pagination { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; align-items: center; font-size: 13px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs button { background: none; border: none; padding: 10px 16px; cursor: pointer; font-size: 14px; color: var(--text-muted); border-bottom: 2px solid transparent; }
.tabs button.active { color: var(--primary); border-color: var(--primary); font-weight: 600; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: end; }
.filter-bar .form-group { margin-bottom: 0; min-width: 150px; }

@media print {
  .no-print { display: none !important; }
  .main-content { margin-left: 0; padding: 0; }
}

@media (max-width: 900px) {
  .grid.cols-4, .grid.cols-5, .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 16px; }
  .menu-toggle { display: block; }
  .grid.cols-2, .grid.cols-3, .grid.cols-4, .grid.cols-5 { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
}