@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #1a56db;
  --primary-dark: #1343b0;
  --primary-light: #e8f0fe;
  --secondary: #f97316;
  --accent: #059669;
  --accent-light: #d1fae5;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --border: #e2e8f0;
  --bg: #f1f5f9;
  --white: #ffffff;
  --sidebar-w: 260px;
  --topbar-h: 64px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.22s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: var(--font); font-size: 15px; background: var(--bg); color: var(--dark); }
a { text-decoration: none; color: var(--primary); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

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

/* ─── Sidebar ────────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); background: var(--dark);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh;
  z-index: 100; transition: transform var(--transition);
  overflow: hidden;
}
.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; gap: 12px;
}
.sidebar-logo-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(26,86,219,0.4);
}
.sidebar-logo-text .name { font-size: 0.88rem; font-weight: 700; color: white; line-height: 1.2; }
.sidebar-logo-text .sub { font-size: 0.7rem; color: rgba(255,255,255,0.45); }
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.sidebar-section-label {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: rgba(255,255,255,0.3);
  padding: 8px 8px 4px; margin-top: 8px;
}
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 10px;
  color: rgba(255,255,255,0.65); font-size: 0.88rem;
  font-weight: 500; transition: var(--transition);
  margin-bottom: 2px; cursor: pointer;
}
.sidebar-link i { width: 18px; text-align: center; font-size: 0.9rem; }
.sidebar-link:hover { background: rgba(255,255,255,0.08); color: white; }
.sidebar-link.active { background: var(--primary); color: white; box-shadow: 0 4px 12px rgba(26,86,219,0.35); }
.sidebar-link .badge {
  margin-left: auto; background: var(--danger);
  color: white; font-size: 0.7rem; font-weight: 700;
  padding: 2px 7px; border-radius: 50px; min-width: 20px; text-align: center;
}
.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ─── Main Content ────────────────────────────────────────────────────────────── */
.main-wrapper { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

/* ─── Top Bar ────────────────────────────────────────────────────────────────── */
.admin-topbar {
  height: var(--topbar-h); background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 28px; gap: 16px;
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-sm);
}
.topbar-title { font-size: 1.05rem; font-weight: 700; flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.topbar-btn {
  padding: 8px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border); background: var(--white);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); color: var(--dark-3);
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font);
}
.topbar-btn:hover { border-color: var(--primary); color: var(--primary); }
.topbar-btn.primary { background: var(--primary); color: white; border-color: var(--primary); }
.topbar-btn.primary:hover { background: var(--primary-dark); }
.topbar-btn.danger { background: var(--danger); color: white; border-color: var(--danger); }
.admin-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 700;
}

/* ─── Page Content ────────────────────────────────────────────────────────────── */
.page-content { flex: 1; padding: 28px; overflow-y: auto; }
.page-section { display: none; }
.page-section.active { display: block; }

/* ─── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  padding: 24px; margin-bottom: 24px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.card-title { font-size: 1rem; font-weight: 700; }
.card-sub { font-size: 0.82rem; color: var(--gray); margin-top: 2px; }

/* ─── Stats Grid ─────────────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 28px; }
.stat-card {
  background: var(--white);
  border-radius: var(--radius); padding: 20px 22px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.stat-card::after {
  content: ''; position: absolute;
  top: 0; right: 0; width: 80px; height: 80px;
  border-radius: 50%; opacity: 0.08;
  transform: translate(20px, -20px);
}
.stat-card.blue::after { background: var(--primary); }
.stat-card.orange::after { background: var(--secondary); }
.stat-card.green::after { background: var(--accent); }
.stat-card.red::after { background: var(--danger); }
.stat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; margin-bottom: 14px;
}
.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.orange { background: #fff7ed; color: var(--secondary); }
.stat-icon.green { background: var(--accent-light); color: var(--accent); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-value { font-size: 1.8rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: 0.78rem; color: var(--gray); margin-top: 4px; font-weight: 500; }
.stat-trend { font-size: 0.75rem; margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.stat-trend.up { color: var(--accent); }
.stat-trend.down { color: var(--danger); }

/* ─── Table ──────────────────────────────────────────────────────────────────── */
.table-container { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead th {
  text-align: left; padding: 12px 16px;
  background: var(--bg); font-size: 0.75rem;
  font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--gray);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }
td { padding: 12px 16px; color: var(--dark-3); vertical-align: middle; }
td .td-main { font-weight: 600; color: var(--dark); }
td .td-sub { font-size: 0.78rem; color: var(--gray); }

/* ─── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 700;
}
.badge-pending { background: var(--warning-light); color: #92400e; }
.badge-done { background: var(--accent-light); color: #065f46; }
.badge-failed { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--primary-light); color: var(--primary-dark); }

/* ─── Form ───────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 0.82rem; font-weight: 600;
  color: var(--dark-3); margin-bottom: 6px;
}
.form-control {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem; font-family: var(--font);
  color: var(--dark); background: var(--white);
  transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.1); }
.form-control::placeholder { color: var(--gray-light); }
textarea.form-control { resize: vertical; min-height: 80px; }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.form-hint { font-size: 0.75rem; color: var(--gray); margin-top: 4px; }

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 20px; border-radius: 8px;
  font-weight: 600; font-size: 0.87rem;
  border: none; cursor: pointer;
  transition: var(--transition); font-family: var(--font);
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--accent); color: white; }
.btn-success:hover { background: #047857; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #b91c1c; }
.btn-warning { background: var(--warning); color: white; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-ghost { background: transparent; color: var(--gray); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 13px; font-size: 0.8rem; }
.btn-icon { padding: 8px; border-radius: 8px; }
.btn-icon-sm { padding: 5px 8px; border-radius: 6px; font-size: 0.78rem; }

/* ─── Modal ──────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15,23,42,0.5); backdrop-filter: blur(4px);
  z-index: 1000; display: flex;
  align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--white); border-radius: var(--radius);
  width: 100%; max-width: 580px;
  box-shadow: var(--shadow-lg);
  transform: translateY(-20px); transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 20px 24px 0;
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.modal-header h3 { font-size: 1.1rem; font-weight: 700; }
.modal-close {
  width: 32px; height: 32px; border-radius: 8px;
  border: none; background: var(--bg);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--gray); font-size: 1rem; transition: var(--transition);
}
.modal-close:hover { background: var(--danger-light); color: var(--danger); }
.modal-body { padding: 0 24px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ─── Filter Row ──────────────────────────────────────────────────────────────── */
.filter-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 20px; }
.filter-row .form-group { margin: 0; min-width: 160px; }
.filter-row .form-group label { font-size: 0.75rem; margin-bottom: 4px; }
.filter-row .form-control { padding: 8px 12px; font-size: 0.83rem; }

/* ─── Toast ──────────────────────────────────────────────────────────────────── */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--white); border-radius: var(--radius-sm);
  padding: 12px 18px; box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  display: flex; align-items: center; gap: 10px;
  font-size: 0.875rem; font-weight: 500;
  animation: slideIn 0.3s ease; max-width: 340px;
}
.toast.success { border-color: var(--accent); }
.toast.error { border-color: var(--danger); }
.toast i { font-size: 1rem; }
.toast.success i { color: var(--accent); }
.toast.error i { color: var(--danger); }
@keyframes slideIn { from { transform: translateX(100%); opacity:0; } to { transform: translateX(0); opacity:1; } }

/* ─── Login Page ──────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1a3a6e 60%, #1a56db 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--white); border-radius: 20px;
  padding: 40px; width: 100%; max-width: 400px;
  box-shadow: var(--shadow-lg);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; margin: 0 auto 16px;
  box-shadow: 0 8px 24px rgba(26,86,219,0.35);
}
.login-logo h1 { font-size: 1.2rem; font-weight: 800; }
.login-logo p { font-size: 0.82rem; color: var(--gray); margin-top: 4px; }
.input-group { position: relative; }
.input-group .form-control { padding-left: 40px; }
.input-group i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--gray); font-size: 0.9rem; }
.toggle-password { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); cursor: pointer; color: var(--gray); background: none; border: none; }
.login-btn { width: 100%; justify-content: center; padding: 12px; font-size: 0.95rem; border-radius: 10px; margin-top: 8px; }

/* ─── Misc ───────────────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--gray); }
.empty-state i { font-size: 3rem; margin-bottom: 16px; color: var(--gray-light); }
.empty-state h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--dark-3); }
.empty-state p { font-size: 0.88rem; }
.load-more { text-align: center; margin-top: 20px; }
.page-loader { position: fixed; inset: 0; background: white; display: flex; align-items: center; justify-content: center; z-index: 9999; transition: opacity 0.4s; }
.page-loader.hidden { opacity: 0; pointer-events: none; }
.loader-spin { width: 40px; height: 40px; border: 4px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.required-star { color: var(--danger); margin-left: 2px; }
.text-muted { color: var(--gray); font-size: 0.8rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.justify-between { justify-content: space-between; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pagination { display: flex; gap: 6px; margin-top: 16px; }
.page-btn { padding: 6px 12px; border-radius: 6px; border: 1.5px solid var(--border); background: white; cursor: pointer; font-size: 0.82rem; font-family: var(--font); transition: var(--transition); }
.page-btn:hover, .page-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrapper { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
}