/* ===== 后台全局样式 ===== */
body {
    background: #f1f5f9;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ===== 侧边栏 ===== */
.sidebar {
    width: 240px;
    background: #0b1120;
    min-height: 100vh;
    padding: 2rem 1rem;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    border-right: 1px solid rgba(255,255,255,0.05);
    box-shadow: 2px 0 20px rgba(0,0,0,0.3);
    z-index: 1000;
}
.sidebar .brand {
    color: #ff0000;
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}
.sidebar .nav-link {
    color: rgba(255,255,255,0.6);
    border-radius: 12px;
    padding: 0.6rem 1rem;
    margin-bottom: 0.3rem;
    transition: all 0.2s;
    text-decoration: none;
    display: block;
}
.sidebar .nav-link:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}
.sidebar .nav-link.active {
    background: linear-gradient(135deg, #f7971e, #ffd200);
    color: #1a1a2e;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(247,151,30,0.3);
}
.sidebar .nav-link i {
    width: 24px;
    margin-right: 10px;
    text-align: center;
}

/* ===== 主内容区 ===== */
.main-content {
    margin-left: 240px;
    padding: 2rem;
    min-height: 100vh;
}

/* ===== 统计卡片 ===== */
.stats-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    transition: transform 0.2s;
}
.stats-card:hover {
    transform: translateY(-4px);
}
.stats-card .number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0b1120;
}
.stats-card .label {
    color: #6c757d;
    font-size: 0.9rem;
}

/* ===== 表格容器 ===== */
.table-container {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    margin-top: 2rem;
    overflow-x: auto;
}
.table-container table {
    margin-bottom: 0;
}
.table-container .table th {
    background: #f8fafc;
    border-bottom: 2px solid #e9ecf0;
}
.table-container .table td {
    vertical-align: middle;
}

/* ===== 状态徽章 ===== */
.badge-pending {
    background: #ffc107;
    color: #000;
    padding: 0.35rem 0.8rem;
    border-radius: 30px;
    font-weight: 500;
}
.badge-confirmed {
    background: #28a745;
    color: #fff;
    padding: 0.35rem 0.8rem;
    border-radius: 30px;
    font-weight: 500;
}

/* ===== 确认按钮 ===== */
.btn-confirm {
    border-radius: 30px;
    padding: 0.2rem 1.2rem;
    font-size: 0.85rem;
}
.btn-confirm:hover {
    transform: scale(1.05);
}

/* ===== 登录页面样式 ===== */
.login-page {
    min-height: 100vh;
    background: linear-gradient(145deg, #0c0a1a, #1a1030);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}
.login-card {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 32px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}
.login-card h2 {
    color: #fff;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.8rem;
}
.login-card h2 span {
    background: linear-gradient(135deg, #f7971e, #ffd200);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.login-card .form-label {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
}
.login-card .form-control {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff;
    border-radius: 12px;
    padding: 0.75rem 1rem;
}
.login-card .form-control:focus {
    background: rgba(255,255,255,0.10);
    border-color: #f7971e;
    box-shadow: 0 0 0 3px rgba(247,151,30,0.2);
    color: #fff;
}
.login-card .btn-login {
    background: linear-gradient(135deg, #f7971e, #ffd200);
    border: none;
    color: #1a1a2e;
    font-weight: 700;
    padding: 0.75rem;
    border-radius: 30px;
    box-shadow: 0 8px 25px rgba(247,151,30,0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
}
.login-card .btn-login:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(247,151,30,0.5);
}
.login-card .alert {
    border-radius: 12px;
    margin-top: 1rem;
}
.login-card .alert-danger {
    background: rgba(239,68,68,0.15);
    color: #fca5a5;
    border: none;
}
.login-card .alert-success {
    background: rgba(34,197,94,0.15);
    color: #86efac;
    border: none;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        min-height: auto;
        padding: 1rem;
    }
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    .stats-card .number {
        font-size: 1.8rem;
    }
    .login-card {
        padding: 2rem 1.5rem;
    }
}