/**
 * Common CSS - Premium Style Framework
 */
:root {
    --gray-50: #f8fafc; --gray-100: #f1f5f9; --gray-200: #e2e8f0; --gray-300: #cbd5e1;
    --gray-400: #94a3b8; --gray-500: #64748b; --gray-600: #475569; --gray-700: #334155;
    --gray-800: #1e293b; --gray-900: #0f172a;
    --primary: #6366f1; --primary-light: #818cf8; --primary-dark: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --success: #10b981; --success-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --warning: #f59e0b; --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --danger: #ef4444; --danger-gradient: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    --info: #3b82f6; --info-gradient: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05); --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1); --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --radius-sm: 6px; --radius: 10px; --radius-lg: 14px; --radius-xl: 20px;
}

/* Premium Card */
.premium-card { background: white; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); border: 1px solid rgba(0,0,0,0.05); margin-bottom: 24px; }
.premium-card:hover { box-shadow: var(--shadow-md); }
.premium-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 2px solid var(--gray-100); }
.premium-card-header h2, .premium-card-header h3 { font-size: 16px; font-weight: 700; color: var(--gray-800); margin: 0; display: flex; align-items: center; gap: 10px; }
.premium-card-header .card-badge { background: var(--primary-gradient); color: white; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { padding: 20px; border-radius: var(--radius-lg); text-align: center; transition: transform 0.3s; }
.stat-card:hover { transform: translateY(-2px); }
.stat-card .value { font-size: 32px; font-weight: 800; color: white; }
.stat-card .label { font-size: 12px; color: rgba(255,255,255,0.9); margin-top: 4px; }
.stat-card.success { background: var(--success-gradient); }
.stat-card.warning { background: var(--warning-gradient); }
.stat-card.danger { background: var(--danger-gradient); }
.stat-card.info { background: var(--info-gradient); }
.stat-card.primary { background: var(--primary-gradient); }
.stat-card.gray { background: linear-gradient(135deg, #64748b, #94a3b8); }

/* Premium Table */
.premium-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.premium-table th { background: linear-gradient(180deg, var(--gray-50), var(--gray-100)); padding: 14px 16px; font-weight: 600; font-size: 11px; color: var(--gray-600); text-transform: uppercase; letter-spacing: 0.8px; border-bottom: 2px solid var(--gray-200); text-align: left; }
.premium-table td { padding: 14px 16px; border-bottom: 1px solid var(--gray-100); font-size: 13px; color: var(--gray-700); }
.premium-table tbody tr:hover { background: linear-gradient(90deg, rgba(99,102,241,0.03), rgba(139,92,246,0.03)); }
.premium-table tbody tr.inactive { opacity: 0.5; background: var(--gray-50); }

/* Badges */
.badge { padding: 4px 10px; border-radius: var(--radius-sm); font-size: 11px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.badge-admin { background: linear-gradient(135deg, #ec4899, #f472b6); color: white; }
.badge-manager { background: linear-gradient(135deg, #f59e0b, #fbbf24); color: white; }
.badge-director { background: linear-gradient(135deg, #8b5cf6, #a78bfa); color: white; }
.badge-leader { background: linear-gradient(135deg, #10b981, #34d399); color: white; }
.badge-seller { background: var(--gray-100); color: var(--gray-600); }
.badge-active { background: rgba(16,185,129,0.1); color: #059669; }
.badge-inactive { background: rgba(239,68,68,0.1); color: #dc2626; }
.badge-success { background: rgba(16,185,129,0.1); color: #059669; }
.badge-warning { background: rgba(245,158,11,0.1); color: #d97706; }
.badge-danger { background: rgba(239,68,68,0.1); color: #dc2626; }
.badge-info { background: rgba(59,130,246,0.1); color: #2563eb; }
.badge-primary { background: rgba(99,102,241,0.1); color: #4f46e5; }

/* Buttons */
.btn { padding: 10px 18px; border: none; border-radius: var(--radius); font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s; display: inline-flex; align-items: center; justify-content: center; gap: 6px; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary-gradient); color: white; }
.btn-primary:hover:not(:disabled) { box-shadow: 0 4px 12px rgba(99,102,241,0.4); transform: translateY(-1px); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); }
.btn-secondary:hover:not(:disabled) { background: var(--gray-200); }
.btn-success { background: var(--success-gradient); color: white; }
.btn-danger { background: var(--danger-gradient); color: white; }
.btn-warning { background: var(--warning-gradient); color: white; }
.btn-info { background: var(--info-gradient); color: white; }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 8px; }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-block { width: 100%; }
.action-btns { display: flex; gap: 4px; flex-wrap: wrap; }
.action-btn { padding: 6px 10px; border: none; border-radius: 8px; font-size: 12px; cursor: pointer; transition: all 0.2s; display: inline-flex; align-items: center; gap: 4px; text-decoration: none; }
.action-btn:hover { transform: translateY(-1px); }
.btn-edit { background: var(--info-gradient); color: white; }
.btn-approve { background: var(--success-gradient); color: white; }
.btn-delete { background: var(--danger-gradient); color: white; }

/* Form Controls */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--gray-600); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-control { width: 100%; padding: 12px 16px; border: 2px solid var(--gray-200); border-radius: var(--radius); font-size: 14px; transition: all 0.2s; background: white; color: var(--gray-800); }
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(99,102,241,0.1); }
.form-control::placeholder { color: var(--gray-400); }
.form-control:disabled { background: var(--gray-100); cursor: not-allowed; }
select.form-control { cursor: pointer; }
textarea.form-control { min-height: 100px; resize: vertical; }
.form-hint { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.form-inline { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* Alerts */
.alert { padding: 16px 20px; border-radius: var(--radius); margin-bottom: 20px; display: flex; align-items: center; gap: 12px; font-size: 14px; }
.alert-success { background: rgba(16,185,129,0.1); color: #059669; border: 1px solid rgba(16,185,129,0.2); }
.alert-error, .alert-danger { background: rgba(239,68,68,0.1); color: #dc2626; border: 1px solid rgba(239,68,68,0.2); }
.alert-warning { background: rgba(245,158,11,0.1); color: #d97706; border: 1px solid rgba(245,158,11,0.2); }
.alert-info { background: rgba(59,130,246,0.1); color: #2563eb; border: 1px solid rgba(59,130,246,0.2); }

/* Premium Modal */
.premium-modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15,23,42,0.6); backdrop-filter: blur(4px); z-index: 1000; padding: 20px; overflow-y: auto; }
.premium-modal[style*="display: block"], .premium-modal[style*="display:block"], .premium-modal.active { display: flex !important; align-items: flex-start; justify-content: center; }
.premium-modal .modal-content { background: white; border-radius: var(--radius-xl); width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg); margin: auto; }
.premium-modal .modal-header { padding: 24px 24px 16px; border-bottom: 1px solid var(--gray-100); display: flex; justify-content: space-between; align-items: center; }
.premium-modal .modal-header h3 { font-size: 18px; font-weight: 700; color: var(--gray-900); margin: 0; }
.premium-modal .modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--gray-400); padding: 0; line-height: 1; }
.premium-modal .modal-close:hover { color: var(--gray-600); }
.premium-modal .modal-body { padding: 24px; }
.premium-modal .modal-footer { padding: 16px 24px 24px; display: flex; justify-content: flex-end; gap: 12px; border-top: 1px solid var(--gray-100); }

/* Empty State */
.empty-state { text-align: center; padding: 48px 24px; color: var(--gray-500); }
.empty-state .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state .message { font-size: 15px; font-weight: 500; }

/* Filter Group */
.filter-group { display: flex; gap: 4px; padding: 4px; background: var(--gray-100); border-radius: var(--radius); margin-bottom: 16px; }
.filter-btn { padding: 8px 16px; border: none; background: transparent; color: var(--gray-600); font-size: 13px; font-weight: 500; cursor: pointer; border-radius: 8px; transition: all 0.2s; display: flex; align-items: center; gap: 6px; }
.filter-btn:hover { background: white; color: var(--gray-700); }
.filter-btn.active { background: white; color: var(--primary); box-shadow: var(--shadow-sm); }
.filter-btn .count { background: var(--gray-200); padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.filter-btn.active .count { background: var(--primary); color: white; }

/* Tab Navigation */
.tab-nav { display: flex; gap: 4px; margin-bottom: 24px; padding: 6px; background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.tab-btn { flex: 1; padding: 14px 20px; border: none; background: transparent; color: var(--gray-500); font-size: 14px; font-weight: 600; cursor: pointer; border-radius: var(--radius); transition: all 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.tab-btn:hover { background: var(--gray-100); color: var(--gray-700); }
.tab-btn.active { background: var(--primary-gradient); color: white; box-shadow: 0 4px 12px rgba(99,102,241,0.3); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Info Grid */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.info-item { padding: 16px; background: var(--gray-50); border-radius: var(--radius); border: 1px solid var(--gray-100); }
.info-label { font-size: 11px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.info-value { font-size: 15px; font-weight: 600; color: var(--gray-800); }

/* Loading */
.loading { display: flex; align-items: center; justify-content: center; padding: 40px; color: var(--gray-500); }
.loading-spinner { width: 24px; height: 24px; border: 3px solid var(--gray-200); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; margin-right: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Responsive */
@media (max-width: 1024px) {
    .tab-nav { flex-wrap: wrap; }
    .tab-btn { flex: 1 1 45%; }
    .filter-group { flex-wrap: wrap; }
}
@media (max-width: 768px) {
    .premium-card { padding: 16px; border-radius: var(--radius); }
    .premium-card-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat-card { padding: 16px 12px; }
    .stat-card .value { font-size: 24px; }
    .stat-card .label { font-size: 11px; }
    .tab-nav { flex-direction: column; padding: 4px; }
    .tab-btn { flex: 1; justify-content: flex-start; padding: 12px 16px; }
    .premium-table thead { display: none; }
    .premium-table tbody { display: block; }
    .premium-table tbody tr { display: block; margin-bottom: 16px; border: 1px solid var(--gray-200); border-radius: var(--radius); background: white; padding: 16px; }
    .premium-table td { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--gray-100); }
    .premium-table td:before { content: attr(data-label); font-weight: 600; color: var(--primary); font-size: 11px; text-transform: uppercase; }
    .premium-table td:last-child { border-bottom: none; flex-direction: column; align-items: flex-start; gap: 8px; }
    .premium-table td:last-child:before { display: none; }
    .action-btns { width: 100%; justify-content: flex-start; }
    .form-inline { flex-direction: column; align-items: stretch; }
    .form-inline input, .form-inline select, .form-inline button { width: 100%; }
    .info-grid { grid-template-columns: 1fr; }
    .premium-modal { padding: 10px; }
    .premium-modal .modal-content { border-radius: var(--radius-lg); max-height: 95vh; }
    .premium-modal .modal-header { padding: 16px; }
    .premium-modal .modal-header h3 { font-size: 16px; }
    .premium-modal .modal-body { padding: 16px; }
    .premium-modal .modal-footer { padding: 12px 16px 16px; flex-direction: column; }
    .premium-modal .modal-footer .btn { width: 100%; }
    .filter-group { width: 100%; }
    .filter-btn { flex: 1; justify-content: center; padding: 10px 8px; font-size: 12px; }
}
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .stat-card .value { font-size: 28px; }
    .btn { padding: 10px 14px; font-size: 13px; }
    .premium-card-header h2, .premium-card-header h3 { font-size: 15px; }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-primary { color: var(--primary); }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.d-none { display: none; }
.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.w-100 { width: 100%; }