/* ============================================
   管理后台 - 统一设计风格
   Admin Dashboard Design System
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --c-bg: #f0f2f5;
    --c-surface: #ffffff;
    --c-primary: #0066ff;
    --c-primary-dark: #0052cc;
    --c-primary-light: #e6f0ff;
    --c-success: #00b341;
    --c-warning: #ff9500;
    --c-error: #ff3b30;
    --c-text: #1a1a1a;
    --c-text-2: #666666;
    --c-text-3: #999999;
    --c-border: #e0e0e0;
    --c-divider: #f0f0f0;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 6px 24px rgba(0, 0, 0, 0.1);
    --radius: 10px;
    --radius-sm: 6px;
}

body {
    font-family: var(--font);
    font-size: 13px;
    line-height: 1.5;
    color: var(--c-text);
    background: var(--c-bg);
    min-height: 100vh;
}

/* ============================================
   登录页面
   ============================================ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--c-bg);
    position: relative;
}

.login-wrapper::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 80%, rgba(0, 102, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 179, 65, 0.06) 0%, transparent 50%);
    animation: bgFloat 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes bgFloat {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(2%, 2%);
    }
}

.login-card {
    background: var(--c-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    position: relative;
    z-index: 1;
    animation: cardEnter 0.5s ease;
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-logo {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    border-radius: 18px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    font-weight: 800;
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.3);
}

.login-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-text-2);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    height: 52px;
    padding: 0 18px;
    border: 2px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 16px;
    color: var(--c-text);
    background: var(--c-surface);
    transition: all 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--c-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--c-primary-dark);
}

.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
    text-align: center;
}

.alert-error {
    background: rgba(255, 59, 48, 0.1);
    color: var(--c-error);
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert-info {
    background: rgba(0, 102, 255, 0.1);
    color: var(--c-primary);
    border: 1px solid rgba(0, 102, 255, 0.2);
}

.alert-success {
    background: rgba(0, 179, 65, 0.1);
    color: var(--c-success);
    border: 1px solid rgba(0, 179, 65, 0.2);
}

/* ============================================
   后台头部
   ============================================ */
.admin-header {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    color: white;
    padding: 10px 0;
    box-shadow: 0 2px 12px rgba(0, 102, 255, 0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
}

.header-logo-icon {
    width: 34px;
    height: 34px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-btn {
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.header-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.header-btn.active {
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   主容器
   ============================================ */
.admin-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px;
}

/* ============================================
   统计卡片
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--c-surface);
    border-radius: var(--radius);
    padding: 12px 10px;
    box-shadow: var(--shadow);
    transition: all 0.2s;
    text-align: center;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 2px;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.warning .stat-number {
    background: linear-gradient(135deg, var(--c-warning) 0%, #e68900 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.success .stat-number {
    background: linear-gradient(135deg, var(--c-success) 0%, #009930 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.error .stat-number {
    background: linear-gradient(135deg, var(--c-error) 0%, #cc2f26 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 11px;
    color: var(--c-text-3);
    font-weight: 500;
}

/* 统计卡片特定颜色 */
.stat-card.stat-pending .stat-number,
.stat-card.stat-today .stat-number {
    background: linear-gradient(135deg, var(--c-warning) 0%, #e68900 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.stat-completed .stat-number,
.stat-card.stat-revenue .stat-number {
    background: linear-gradient(135deg, var(--c-success) 0%, #009930 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.stat-failed .stat-number {
    background: linear-gradient(135deg, var(--c-error) 0%, #cc2f26 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   区块/卡片
   ============================================ */
.section {
    background: var(--c-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 16px;
    overflow: hidden;
}

.section-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--c-divider);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fafbfc;
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-text);
}

.section-content {
    padding: 14px 16px;
}

/* ============================================
   表格
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--c-divider);
    font-size: 14px;
}

.data-table th {
    background: #fafbfc;
    font-weight: 600;
    color: var(--c-text-2);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background: var(--c-primary-light);
}

.data-table tr:last-child td {
    border-bottom: none;
}

/* ============================================
   状态标签
   ============================================ */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-pending {
    background: rgba(255, 149, 0, 0.15);
    color: #cc7700;
}

.status-paid {
    background: rgba(0, 102, 255, 0.15);
    color: var(--c-primary);
}

.status-completed {
    background: rgba(0, 179, 65, 0.15);
    color: var(--c-success);
}

.status-failed {
    background: rgba(255, 59, 48, 0.15);
    color: var(--c-error);
}

/* ============================================
   按钮样式
   ============================================ */
.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-sm.primary {
    background: var(--c-primary);
    color: white;
}

.btn-sm.primary:hover {
    background: var(--c-primary-dark);
}

.btn-sm.success {
    background: var(--c-success);
    color: white;
}

.btn-sm.success:hover {
    background: #009930;
}

.btn-sm.secondary {
    background: var(--c-divider);
    color: var(--c-text-2);
}

.btn-sm.secondary:hover {
    background: var(--c-border);
}

.btn-sm.danger {
    background: var(--c-error);
    color: white;
}

.btn-sm.danger:hover {
    background: #cc2f26;
}

/* ============================================
   表单
   ============================================ */
.inline-form {
    display: flex;
    gap: 12px;
    align-items: center;
}

.inline-form .form-input {
    flex: 1;
    height: 44px;
}

.inline-form .btn {
    width: auto;
    height: 44px;
    padding: 0 24px;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }

    .header-nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .data-table {
        font-size: 12px;
    }

    .data-table th,
    .data-table td {
        padding: 10px 8px;
    }

    .section-content {
        padding: 16px;
    }
}

/* ============================================
   额外样式 - 兼容admin.php原有类名
   ============================================ */
.orders-table {
    width: 100%;
    border-collapse: collapse;
}

.orders-table th,
.orders-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--c-divider);
    font-size: 13px;
}

.orders-table th {
    background: #fafbfc;
    font-weight: 600;
    color: var(--c-text-2);
    font-size: 12px;
}

.orders-table tr:hover {
    background: var(--c-primary-light);
}

.orders-table tr:last-child td {
    border-bottom: none;
}

.refresh-btn {
    background: var(--c-success);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.refresh-btn:hover {
    background: #009930;
}

.error-message {
    background: rgba(255, 59, 48, 0.1);
    color: var(--c-error);
    border: 1px solid rgba(255, 59, 48, 0.2);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin-bottom: 12px;
    text-align: center;
    font-size: 13px;
}

.success-message {
    background: rgba(0, 179, 65, 0.1);
    color: var(--c-success);
    border: 1px solid rgba(0, 179, 65, 0.2);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin-bottom: 12px;
    text-align: center;
    font-size: 13px;
}

/* 操作按钮 */
.btn-success {
    background: var(--c-success);
    color: white;
}

.btn-success:hover {
    background: #009930;
}

.btn-warning {
    background: var(--c-warning);
    color: white;
}

.btn-warning:hover {
    background: #e68900;
}

.search-btn {
    background: var(--c-primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}

.search-btn:hover {
    background: var(--c-primary-dark);
}