:root{--primary: #2563EB;--primary-hover: #1D4ED8;--primary-light: #EFF6FF;--primary-border: #BFDBFE;--success: #10B981;--danger: #EF4444;--warning: #F59E0B;--text-dark: #0F172A;--text-muted: #64748B;--bg-page: #F8FAFC;--bg-card: #FFFFFF;--border-color: #E2E8F0;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .03);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-dark);line-height:1.5;-webkit-font-smoothing:antialiased}.admin-layout{min-height:100vh;display:flex;flex-direction:column}.admin-header{background-color:#fff;border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:40}.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}.header-brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--primary);font-size:1.15rem}.header-brand .badge{background-color:var(--primary-light);color:var(--primary);font-size:.75rem;padding:2px 8px;border-radius:var(--radius-sm);font-weight:700;border:1px solid var(--primary-border)}.header-actions{display:flex;align-items:center;gap:16px}.admin-main{max-width:1280px;margin:0 auto;padding:28px 24px 60px;width:100%;flex:1}.tabs-nav{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--border-color);margin-bottom:24px}.tab-btn{padding:12px 20px;font-size:.95rem;font-weight:600;color:var(--text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:8px}.tab-btn:hover{color:var(--primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:24px;margin-bottom:24px}.card-header-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.card-title{font-size:1.25rem;font-weight:700;color:var(--text-dark)}.card-desc{font-size:.875rem;color:var(--text-muted);margin-top:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;font-size:.875rem;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;border:1px solid transparent;transition:all .2s ease;text-decoration:none}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-secondary{background-color:#fff;border-color:var(--border-color);color:var(--text-dark)}.btn-secondary:hover{background-color:#f1f5f9}.btn-danger{background-color:#fee2e2;color:var(--danger);border-color:#fecaca}.btn-danger:hover{background-color:var(--danger);color:#fff}.btn-sm{padding:5px 10px;font-size:.8rem}.form-group{margin-bottom:18px}.form-label{display:block;font-size:.875rem;font-weight:600;color:var(--text-dark);margin-bottom:6px}.form-input,.form-textarea,.form-select{width:100%;padding:9px 13px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:.9rem;font-family:inherit;color:var(--text-dark);background-color:#fff;transition:border-color .15s ease,box-shadow .15s ease}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}.form-help{font-size:.8rem;color:var(--text-muted);margin-top:4px}.checkbox-label{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;font-weight:600;cursor:pointer}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}.dynamic-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}.dynamic-row .form-input{flex:1}.data-table-wrap{overflow-x:auto;border:1px solid var(--border-color);border-radius:var(--radius-md)}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:.875rem}.data-table th{background-color:#f8fafc;padding:12px 16px;font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border-color)}.data-table td{padding:14px 16px;border-bottom:1px solid var(--border-color);color:var(--text-dark)}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover{background-color:#f8fafc}.badge-status{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:var(--radius-full);font-size:.75rem;font-weight:700}.badge-current{background-color:var(--primary-light);color:var(--primary);border:1px solid var(--primary-border)}.badge-past{background-color:#f1f5f9;color:var(--text-muted);border:1px solid var(--border-color)}.admin-modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0f172a80;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.admin-modal{background-color:#fff;border-radius:var(--radius-lg);max-width:680px;width:100%;max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);overflow:hidden}.admin-modal-header{padding:18px 24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;background-color:#fff}.admin-modal-body{padding:24px;overflow-y:auto;flex:1 1 auto;min-height:0;max-height:calc(85vh - 130px)}.admin-modal-body::-webkit-scrollbar{width:6px}.admin-modal-body::-webkit-scrollbar-track{background:#f1f5f9}.admin-modal-body::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.admin-modal-body::-webkit-scrollbar-thumb:hover{background:#94a3b8}.admin-modal-footer{padding:16px 24px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:12px;flex-shrink:0;background-color:#fff}.toast-container{position:fixed;bottom:24px;right:24px;z-index:200;display:flex;flex-direction:column;gap:10px}.toast{padding:12px 18px;background-color:#1e293b;color:#fff;border-radius:var(--radius-sm);font-size:.875rem;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;animation:slideIn .2s ease-out}.toast.toast-success{background-color:#065f46;border-left:4px solid #10B981}.toast.toast-error{background-color:#991b1b;border-left:4px solid #EF4444}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#eff6ff,#dbeafe)}.login-card{max-width:420px;width:100%;background-color:#fff;border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-lg);border:1px solid var(--primary-border)}