@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #2563EB;
  --primary-h: #1D4ED8;
  --primary-l: #EFF6FF;
  --bg: #F1F5F9;
  --surface: #FFFFFF;
  --surface2: #F8FAFC;
  --border: #E2E8F0;
  --border2: #CBD5E1;
  --text: #0F172A;
  --text2: #334155;
  --muted: #64748B;
  --muted2: #94A3B8;
  --success: #059669;
  --success-bg: #ECFDF5;
  --success-b: #A7F3D0;
  --warning: #D97706;
  --warning-bg: #FFFBEB;
  --warning-b: #FDE68A;
  --danger: #DC2626;
  --danger-bg: #FEF2F2;
  --danger-b: #FECACA;
  --info: #0284C7;
  --info-bg: #F0F9FF;
  --info-b: #BAE6FD;
  --sidebar-w: 240px;
  --header-h: 60px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body { font-family: 'Plus Jakarta Sans', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { text-decoration: none; color: inherit; }

/* ── Layout ── */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--surface); border-right: 1px solid var(--border);
  position: fixed; top: 0; left: 0; bottom: 0; overflow-y: auto;
  display: flex; flex-direction: column; z-index: 50;
}
.sidebar-logo {
  padding: 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.logo-icon {
  width: 36px; height: 36px; background: var(--primary);
  border-radius: 9px; display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
}
.logo-text { font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: -0.3px; }
.logo-text span { color: var(--primary); }

.nav { padding: 16px 12px; flex: 1; }
.nav-section { margin-bottom: 24px; }
.nav-section-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted2); padding: 0 8px; margin-bottom: 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--radius);
  font-size: 13.5px; font-weight: 500; color: var(--muted);
  cursor: pointer; transition: all 0.15s; margin-bottom: 2px;
  position: relative;
}
.nav-item:hover { background: var(--bg); color: var(--text); }
.nav-item.active { background: var(--primary-l); color: var(--primary); }
.nav-item svg { flex-shrink: 0; }
.nav-badge {
  margin-left: auto; background: var(--danger); color: #fff;
  font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 20px;
  min-width: 18px; text-align: center;
}
.sidebar-footer {
  padding: 16px; border-top: 1px solid var(--border);
}
.user-card {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px;
  border-radius: var(--radius); background: var(--surface2);
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 12px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 10px; color: var(--muted); }
.logout-btn {
  background: none; border: none; cursor: pointer; color: var(--muted);
  padding: 4px; border-radius: 4px; transition: color 0.15s;
}
.logout-btn:hover { color: var(--danger); }

/* ── Main ── */
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.header {
  height: var(--header-h); background: var(--surface);
  border-bottom: 1px solid var(--border); padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 40;
}
.header-left h1 { font-size: 17px; font-weight: 600; color: var(--text); }
.header-left p { font-size: 12px; color: var(--muted); }
.header-right { display: flex; align-items: center; gap: 10px; }
.content { padding: 24px 28px; flex: 1; }

/* ── Cards ── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-size: 14px; font-weight: 600; color: var(--text); }
.card-muted { font-size: 13px; color: var(--muted); }

/* ── Stat cards ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 18px 20px;
}
.stat-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text); line-height: 1; margin-bottom: 4px; }
.stat-sub { font-size: 12px; color: var(--muted); }
.stat-card.primary { background: var(--primary); border-color: var(--primary); }
.stat-card.primary .stat-label, .stat-card.primary .stat-value, .stat-card.primary .stat-sub { color: rgba(255,255,255,0.9); }
.stat-card.primary .stat-value { color: #fff; }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  text-align: left; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted);
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td { padding: 13px 14px; border-bottom: 1px solid var(--border); color: var(--text2); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface2); }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 20px;
  white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success); border: 1px solid var(--success-b); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning-b); }
.badge-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger-b); }
.badge-info { background: var(--info-bg); color: var(--info); border: 1px solid var(--info-b); }
.badge-neutral { background: var(--surface2); color: var(--muted); border: 1px solid var(--border); }
.badge-primary { background: var(--primary-l); color: var(--primary); border: 1px solid #BFDBFE; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px; border-radius: var(--radius);
  font-size: 13.5px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all 0.15s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-h); }
.btn-secondary { background: var(--surface); color: var(--text2); border-color: var(--border2); }
.btn-secondary:hover { background: var(--surface2); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-success { background: var(--success); color: #fff; border-color: var(--success); }
.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-ghost { background: none; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text2); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border2);
  border-radius: var(--radius); font-size: 13.5px; color: var(--text);
  background: var(--surface); transition: border-color 0.15s;
  font-family: inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-textarea { resize: vertical; min-height: 80px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-hint { font-size: 11.5px; color: var(--muted); margin-top: 4px; }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,0.45);
  z-index: 200; display: flex; align-items: center; justify-content: center;
  padding: 20px; backdrop-filter: blur(2px);
}
.modal {
  background: var(--surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 540px; box-shadow: var(--shadow-lg);
  max-height: 90vh; overflow-y: auto;
}
.modal-header {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 700; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--muted); padding: 4px; border-radius: 4px; }
.modal-close:hover { color: var(--text); background: var(--surface2); }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Toast ── */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px; box-shadow: var(--shadow-lg);
  font-size: 13px; font-weight: 500; min-width: 280px;
  display: flex; align-items: center; gap: 10px;
  animation: slideIn 0.2s ease;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Alert boxes ── */
.alert-box { border-radius: var(--radius); padding: 12px 16px; font-size: 13px; margin-bottom: 16px; display: flex; gap: 10px; align-items: flex-start; }
.alert-box.danger { background: var(--danger-bg); border: 1px solid var(--danger-b); color: #991B1B; }
.alert-box.warning { background: var(--warning-bg); border: 1px solid var(--warning-b); color: #92400E; }
.alert-box.success { background: var(--success-bg); border: 1px solid var(--success-b); color: #065F46; }
.alert-box.info { background: var(--info-bg); border: 1px solid var(--info-b); color: #075985; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 48px 20px; }
.empty-state svg { color: var(--muted2); margin-bottom: 12px; }
.empty-state h3 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-state p { font-size: 13px; color: var(--muted); }

/* ── Utilities ── */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-muted { color: var(--muted); font-size: 13px; }
.text-sm { font-size: 12px; }
.fw-600 { font-weight: 600; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ── Loading ── */
.spinner {
  width: 18px; height: 18px; border: 2px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin 0.6s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-screen { display: flex; align-items: center; justify-content: center; height: 100vh; flex-direction: column; gap: 12px; }
.loading-screen p { color: var(--muted); font-size: 13px; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }