*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1677ff;--primary-hover:#4096ff;--bg:#f0f2f5;--sidebar-bg:#001529;--card-bg:#fff;--text:#333;--text2:#666;--border:#e8e8e8;--radius:8px;--error:#ff4d4f;--success:#52c41a;--warning:#faad14}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:14px}
a{color:var(--primary);text-decoration:none;transition:.2s}a:hover{color:var(--primary-hover)}
.text-muted{color:var(--text2);font-size:.9em}
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);padding:20px}
.login-container{width:100%;max-width:420px}
.login-box{background:var(--card-bg);padding:40px;border-radius:16px;box-shadow:0 8px 40px rgba(0,0,0,.15)}
.login-title{text-align:center;font-size:26px;margin-bottom:4px;color:var(--primary);font-weight:700}
.login-subtitle{text-align:center;color:var(--text2);margin-bottom:28px}
.login-footer-text{text-align:center;color:var(--text2);font-size:12px;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}
.lang-switch{text-align:right;margin-bottom:8px;font-size:13px}
.lang-switch a{padding:2px 8px;border-radius:4px}.lang-switch a.active{background:var(--primary);color:#fff}
.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px}
.alert-error{background:#fff2f0;border:1px solid #ffccc7;color:var(--error)}
.alert-success{background:#f6ffed;border:1px solid #b7eb8f;color:var(--success)}
.layout{display:flex;flex-direction:column;min-height:100vh}
.topbar{background:var(--card-bg);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);box-shadow:0 1px 4px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.logo{font-size:20px;color:var(--primary);font-weight:700}
.topbar-right{display:flex;align-items:center;gap:12px}
.welcome{color:var(--text2);font-size:14px}
.role-badge{padding:2px 12px;border-radius:12px;font-size:12px;font-weight:500}
.role-badge.admin{background:#e6f7ff;color:var(--primary);border:1px solid #91d5ff}
.role-badge.user{background:#f6ffed;color:var(--success);border:1px solid #b7eb8f}
.btn-lang{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;color:var(--text)}
.btn-lang:hover{border-color:var(--primary);color:var(--primary)}
.btn-logout{padding:6px 16px;border:1px solid var(--error);color:var(--error);border-radius:var(--radius);font-size:13px}
.btn-logout:hover{background:var(--error);color:#fff}
.main-container{display:flex;flex:1}
.sidebar{width:230px;background:var(--sidebar-bg);padding-top:16px;flex-shrink:0;overflow-y:auto}
.nav-list{list-style:none}
.nav-list a{display:block;padding:14px 24px;color:rgba(255,255,255,.65);font-size:14px;transition:.3s;border-left:3px solid transparent}
.nav-list a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-list a.active{color:#fff;background:rgba(22,119,255,.15);border-left-color:var(--primary);font-weight:600}
.nav-list li:nth-child(-n+3) a{font-weight:700}
.nav-divider{padding:20px 24px 6px;color:rgba(255,255,255,.35);font-size:11px;text-transform:uppercase;letter-spacing:1px;list-style:none}
.nav-list a .nav-icon{display:inline-block;width:24px;text-align:center;margin-right:4px}
.content{flex:1;padding:28px;overflow-y:auto;background:#f5f7fa}
.footer{text-align:center;padding:14px;color:var(--text2);font-size:12px;border-top:1px solid var(--border);background:var(--card-bg)}
.card{background:var(--card-bg);border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.06);margin-bottom:24px;border:1px solid #f0f0f0}
.card-header{padding:18px 24px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.card-header h3{font-size:16px;font-weight:600}
.card-body{padding:24px}.card-footer{padding:14px 24px;border-top:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:28px}
.stat-card{background:var(--card-bg);border-radius:12px;padding:24px;display:flex;align-items:center;gap:16px;box-shadow:0 2px 8px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:.3s}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.1)}
.stat-icon{font-size:40px}.stat-number{display:block;font-size:32px;font-weight:700;color:var(--primary)}
.stat-label{font-size:13px;color:var(--text2)}
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:768px){.content-grid,.card-grid{grid-template-columns:1fr}}
.item-list{list-style:none}.item-list li{padding:12px 0;border-bottom:1px solid #f5f5f5;display:flex;justify-content:space-between;align-items:center}
.item-list li:last-child{border-bottom:none}.item-list .date{font-size:12px;color:var(--text2)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid #f0f0f0}
.table th{background:#fafafa;font-weight:600;font-size:13px;color:var(--text2)}
.table tr:hover td{background:#f5f7fa}
.status-tag{display:inline-block;padding:2px 10px;border-radius:10px;font-size:12px;font-weight:500}
.status-tag.pending{background:#fff7e6;color:#d46b08;border:1px solid #ffd591}
.status-tag.approved{background:#f6ffed;color:#389e0d;border:1px solid #b7eb8f}
.status-tag.rejected{background:#fff2f0;color:#cf1322;border:1px solid #ffa39e}
.badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:12px;background:var(--primary);color:#fff}
.btn-sm{padding:4px 14px;font-size:12px;border:1px solid var(--border);border-radius:var(--radius);color:var(--text);display:inline-block}
.btn-sm:hover{border-color:var(--primary);color:var(--primary)}
.pagination{margin-top:20px;display:flex;gap:8px;justify-content:center}
.page-header{margin-bottom:28px}.page-header h2{font-size:24px;margin-bottom:6px;font-weight:700}
.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:14px}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:1px solid #d9d9d9;border-radius:var(--radius);font-size:14px;font-family:inherit;transition:.2s;background:#fff}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(22,119,255,.15)}
.form-group textarea{min-height:100px;resize:vertical}
.form-row{display:flex;gap:16px}.form-group.half{flex:1}
.required{color:var(--error);margin-left:2px}
.form-actions{display:flex;gap:12px;margin-top:28px}
.input-disabled{background:#f5f5f5;color:var(--text2);cursor:not-allowed}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 24px;border-radius:var(--radius);font-size:14px;cursor:pointer;border:1px solid #d9d9d9;background:#fff;font-weight:500;transition:.2s}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.btn-secondary{background:#fff;color:var(--text)}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{width:100%;justify-content:center}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.announcement-content{line-height:1.9;font-size:15px}
.tabs{display:flex;gap:8px;margin-bottom:24px}
.tab{padding:10px 24px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;color:var(--text2);background:var(--card-bg)}
.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.detail-table{width:100%}.detail-table td{padding:12px 16px;border-bottom:1px solid #f0f0f0}
.detail-table td.label{font-weight:600;width:140px;color:var(--text2);background:#fafafa}


/* Approval buttons */
.btn-approve { background:#52c41a;color:#fff;border-color:#52c41a; }
.btn-approve:hover { background:#73d13d; }
.btn-reject { background:#ff4d4f;color:#fff;border-color:#ff4d4f; }
.btn-reject:hover { background:#ff7875; }
.action-cell { min-width:160px;white-space:nowrap; }
.btn-pending { position:relative;padding:6px 16px;border:1px solid #52c41a;color:#52c41a;border-radius:6px;font-size:13px; }
.btn-pending:hover { background:#52c41a;color:#fff; }
.badge-pending { display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;background:#ff4d4f;color:#fff;border-radius:9px;font-size:11px;margin-left:2px; }
.badge-sidebar { display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;background:#ff4d4f;color:#fff;border-radius:10px;font-size:11px;float:right;margin-top:2px; }
.logo { color: #333 !important; }