/* =========================================
 * 团印客 - 现代化 SaaS 后台主题
 * 暖橙渐变 + 深色侧边栏
 * ========================================= */

:root {
    /* 品牌色 */
    --brand-primary: #f97316;
    --brand-primary-hover: #ea580c;
    --brand-gradient: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    --brand-gradient-soft: linear-gradient(135deg, #fed7aa 0%, #fecaca 100%);

    /* 状态色 */
    --brand-info: #3b82f6;
    --brand-success: #10b981;
    --brand-warning: #f59e0b;
    --brand-danger: #ef4444;
    --brand-purple: #8b5cf6;
    --brand-cyan: #06b6d4;

    /* 中性色 */
    --bg-page: #f5f7fb;
    --bg-card: #ffffff;
    --bg-hover: #f9fafb;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;

    /* 侧边栏 */
    --sidebar-gradient: linear-gradient(180deg, #1e1b4b 0%, #312e81 100%);
    --sidebar-text: #cbd5e1;
    --sidebar-text-active: #ffffff;
    --sidebar-active-bg: rgba(249, 115, 22, 0.15);
    --sidebar-hover-bg: rgba(255, 255, 255, 0.05);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 30px rgba(249, 115, 22, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);

    /* 动效 */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 200ms;
}

/* ============= 基础重置 ============= */
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-page);
    -webkit-font-smoothing: antialiased;
}

.content-wrapper {
    background: var(--bg-page);
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* ============= 顶部导航 ============= */
.main-header.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    height: 60px;
}

.main-header.navbar .nav-link {
    color: var(--text-secondary);
    transition: color var(--duration) var(--ease);
}

.main-header.navbar .nav-link:hover {
    color: var(--brand-primary);
}

.main-header.navbar .nav-link.btn-logout {
    background: var(--brand-gradient);
    color: #fff !important;
    border-radius: var(--radius-md);
    padding: 6px 16px !important;
    margin: 8px 12px;
    transition: all var(--duration) var(--ease);
}

.main-header.navbar .nav-link.btn-logout:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
}

.main-header .navbar-brand-page {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-left: 12px;
    padding-left: 12px;
    border-left: 2px solid var(--border-color);
    line-height: 24px;
}

/* ============= 侧边栏 ============= */
.main-sidebar.sidebar-dark-bg {
    background: var(--sidebar-gradient) !important;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.08);
}

.main-sidebar.sidebar-dark-bg .brand-link {
    background: transparent !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 16px 18px;
}

.main-sidebar.sidebar-dark-bg .brand-text {
    color: #fff !important;
    font-weight: 600;
    font-size: 18px;
    letter-spacing: 1px;
}

.main-sidebar.sidebar-dark-bg .nav-sidebar > .nav-item > .nav-link {
    color: var(--sidebar-text) !important;
    border-radius: var(--radius-md);
    margin: 4px 12px;
    padding: 10px 14px;
    transition: all var(--duration) var(--ease);
    position: relative;
}

.main-sidebar.sidebar-dark-bg .nav-sidebar > .nav-item > .nav-link:hover {
    background: var(--sidebar-hover-bg) !important;
    color: #fff !important;
}

.main-sidebar.sidebar-dark-bg .nav-sidebar > .nav-item > .nav-link.active {
    background: var(--sidebar-active-bg) !important;
    color: var(--sidebar-text-active) !important;
    font-weight: 500;
}

.main-sidebar.sidebar-dark-bg .nav-sidebar > .nav-item > .nav-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 18px;
    background: var(--brand-gradient);
    border-radius: 0 3px 3px 0;
}

.main-sidebar.sidebar-dark-bg .nav-icon {
    color: var(--sidebar-text) !important;
    width: 22px;
    text-align: center;
    margin-right: 10px;
}

.main-sidebar.sidebar-dark-bg .nav-link.active .nav-icon,
.main-sidebar.sidebar-dark-bg .nav-link:hover .nav-icon {
    color: var(--brand-primary) !important;
}

.main-sidebar.sidebar-dark-bg .right.badge {
    background: var(--brand-gradient) !important;
    color: #fff !important;
    border-radius: var(--radius-full);
    font-size: 10px;
    padding: 2px 6px;
    box-shadow: 0 2px 6px rgba(249, 115, 22, 0.4);
}

/* 侧边栏滚动条 */
.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
}
.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ============= 内容区 ============= */
.content-header {
    padding: 16px 0.5rem;
}

.content-wrapper > .content {
    padding: 20px 0.5rem;
}

/* ============= 卡片 ============= */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    background: var(--bg-card);
    transition: box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease);
    margin-bottom: 20px;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 20px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    padding: 20px;
}

.card-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-light);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg) !important;
    padding: 12px 20px;
}

/* ============= 数据统计卡片 ============= */
.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    transition: all var(--duration) var(--ease);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--brand-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
    margin-right: 16px;
    flex-shrink: 0;
}

.stat-card__icon--orange { background: var(--brand-gradient); box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3); }
.stat-card__icon--blue { background: linear-gradient(135deg, #3b82f6, #06b6d4); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
.stat-card__icon--purple { background: linear-gradient(135deg, #8b5cf6, #ec4899); box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3); }
.stat-card__icon--green { background: linear-gradient(135deg, #10b981, #14b8a6); box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3); }
.stat-card__icon--red { background: linear-gradient(135deg, #ef4444, #f97316); box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3); }

.stat-card__body {
    flex: 1;
    min-width: 0;
}

.stat-card__label {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 6px;
}

.stat-card__value {
    color: var(--text-primary);
    font-size: 26px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-card__trend {
    font-size: 12px;
    font-weight: 500;
}

.stat-card__trend--up { color: var(--brand-success); }
.stat-card__trend--down { color: var(--brand-danger); }
.stat-card__trend--neutral { color: var(--text-muted); }

/* ============= 按钮 ============= */
.btn {
    border-radius: var(--radius-md);
    font-weight: 500;
    padding: 6px 16px;
    transition: all var(--duration) var(--ease);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn:focus, .btn.focus {
    box-shadow: none;
}

.btn-brand,
.btn-primary {
    background: var(--brand-gradient) !important;
    border-color: var(--brand-primary) !important;
    color: #fff !important;
}

.btn-brand:hover,
.btn-primary:hover {
    background: var(--brand-gradient) !important;
    border-color: var(--brand-primary-hover) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(249, 115, 22, 0.35);
}

.btn-outline-brand {
    background: transparent;
    border: 1px solid var(--brand-primary);
    color: var(--brand-primary);
}

.btn-outline-brand:hover {
    background: var(--brand-primary);
    color: #fff;
}

.btn-success {
    background: var(--brand-success) !important;
    border-color: var(--brand-success) !important;
}

.btn-danger {
    background: var(--brand-danger) !important;
    border-color: var(--brand-danger) !important;
}

.btn-info {
    background: var(--brand-info) !important;
    border-color: var(--brand-info) !important;
}

.btn-secondary {
    background: #fff !important;
    border-color: var(--border-color) !important;
    color: var(--text-secondary) !important;
}

.btn-secondary:hover {
    background: var(--bg-hover) !important;
    color: var(--text-primary) !important;
    border-color: var(--text-muted) !important;
}

.btn-xs, .btn-sm {
    padding: 3px 10px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

/* ============= 徽章 ============= */
.badge, .tag {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
    display: inline-block;
    line-height: 1.4;
}

.tag-primary, .badge-primary { background: rgba(59, 130, 246, 0.12) !important; color: var(--brand-info) !important; }
.tag-success, .badge-success { background: rgba(16, 185, 129, 0.12) !important; color: var(--brand-success) !important; }
.tag-warning, .badge-warning { background: rgba(245, 158, 11, 0.12) !important; color: var(--brand-warning) !important; }
.tag-danger, .badge-danger { background: rgba(239, 68, 68, 0.12) !important; color: var(--brand-danger) !important; }
.tag-orange { background: rgba(249, 115, 22, 0.12) !important; color: var(--brand-primary) !important; }
.tag-secondary, .badge-secondary { background: rgba(107, 114, 128, 0.12) !important; color: var(--text-secondary) !important; }

/* ============= 表格 ============= */
.table {
    color: var(--text-primary);
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
}

.table thead th {
    background: #f9fafb;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    text-transform: none;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 14px;
    white-space: nowrap;
}

.table tbody td {
    padding: 12px 14px;
    border-top: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 14px;
}

.table tbody tr {
    transition: all var(--duration) var(--ease);
    position: relative;
}

.table tbody tr:hover {
    background: rgba(249, 115, 22, 0.04) !important;
}

.table tbody tr:hover td:first-child {
    box-shadow: inset 3px 0 0 var(--brand-primary);
}

.table-bordered {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table-bordered thead th,
.table-bordered tbody td {
    border: 1px solid var(--border-light);
}

.table-responsive {
    border-radius: var(--radius-md);
}

/* 空状态 */
.empty-state {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-muted);
}

.empty-state__icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state__text {
    font-size: 14px;
}

/* ============= 表单 ============= */
.form-control {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-card);
    transition: all var(--duration) var(--ease);
}

.form-control:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.12);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled, .form-control[readonly] {
    background: var(--bg-hover);
}

.form-group label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.col-form-label {
    color: var(--text-secondary);
}

select.form-control {
    cursor: pointer;
}

.input-group-text {
    background: var(--bg-hover);
    border-color: var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
}

/* ============= 分页 ============= */
.pagination {
    margin: 0;
    gap: 4px;
}

.pagination .page-item .page-link {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 13px;
    background: var(--bg-card);
    transition: all var(--duration) var(--ease);
}

.pagination .page-item .page-link:hover {
    background: var(--brand-gradient-soft);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.pagination .page-item.active .page-link {
    background: var(--brand-gradient);
    border-color: var(--brand-primary);
    color: #fff;
    box-shadow: 0 4px 8px rgba(249, 115, 22, 0.3);
}

.pagination .page-item.disabled .page-link {
    background: var(--bg-hover);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* ============= 警告框 ============= */
.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: 12px 16px;
    border-left: 4px solid;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.08);
    color: #92400e;
    border-left-color: var(--brand-warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.08);
    color: #1e40af;
    border-left-color: var(--brand-info);
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    color: #065f46;
    border-left-color: var(--brand-success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    color: #991b1b;
    border-left-color: var(--brand-danger);
}

/* ============= 登录页 ============= */
.login-page {
    background: #f5f7fb;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    display: flex;
    width: 100%;
    max-width: 960px;
    min-height: 560px;
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-banner {
    flex: 1;
    background: var(--brand-gradient);
    color: #fff;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.login-banner::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.login-banner::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.login-banner__logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.login-banner__logo img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    margin-right: 12px;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px;
}

.login-banner__title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.login-banner__subtitle {
    font-size: 15px;
    opacity: 0.9;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.login-banner__decor {
    position: absolute;
    bottom: 40px;
    left: 50px;
    right: 50px;
    z-index: 1;
}

.login-banner__decor svg {
    width: 100%;
    height: 100px;
    opacity: 0.4;
}

.login-form-wrap {
    flex: 1;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-form-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.login-form .input-group {
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all var(--duration) var(--ease);
}

.login-form .input-group:focus-within {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.12);
}

.login-form .form-control {
    border: none;
    padding: 12px 14px;
    background: var(--bg-card);
    box-shadow: none !important;
}

.login-form .input-group-text {
    background: var(--bg-card);
    border: none;
    color: var(--text-muted);
    padding-left: 14px;
}

.login-form .btn-primary {
    background: var(--brand-gradient) !important;
    border: none !important;
    padding: 12px;
    font-size: 15px;
    font-weight: 600;
    width: 100%;
    margin-top: 8px;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.login-form .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(249, 115, 22, 0.4);
}

@media (max-width: 768px) {
    .login-container {
        flex-direction: column;
        max-width: 420px;
    }
    .login-banner {
        padding: 30px;
    }
    .login-banner__title { font-size: 22px; }
    .login-banner__decor { display: none; }
    .login-form-wrap { padding: 30px; }
}

/* ============= 工具类 ============= */
.text-gray, .text-muted { color: var(--text-secondary) !important; }
.text-brand { color: var(--brand-primary) !important; }
.text-success { color: var(--brand-success) !important; }
.text-danger { color: var(--brand-danger) !important; }
.text-warning { color: var(--brand-warning) !important; }

.bg-brand-soft { background: var(--brand-gradient-soft); }

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .stat-card {
    animation: fadeIn 0.3s var(--ease);
}

/* 主内容区背景 */
body.hold-transition {
    background: var(--bg-page);
}