/* DNS 管理控制台 - 现代化样式 */

:root {
    /* 主题色 - 专业蓝调 */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    
    /* 强调色 */
    --accent-primary: #0ea5e9;
    --accent-secondary: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    
    /* 状态色 */
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* 文字色 */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* 边框 */
    --border-color: #334155;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(14, 165, 233, 0.3);
    
    /* 字体 */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* 间距 */
    --sidebar-width: 240px;
}

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

html, body {
    height: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

/* 背景效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 0% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 100%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* 应用容器 */
.app {
    display: flex;
    height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.logo span {
    font-size: 1.2rem;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 导航 */
.nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 450;
    font-size: 0.95rem;
}

.nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

/* 侧边栏底部 */
.sidebar-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: pulse 2s infinite;
}

.status-badge.online .status-dot {
    background: var(--success);
}

.status-badge.offline .status-dot {
    background: var(--error);
}

.logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 12px;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 主内容区 */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
}

/* 页面 */
.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-actions .input {
    width: 260px;
    max-width: 40vw;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

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

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* 统计卡片网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card.clickable {
    cursor: pointer;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon.green { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.stat-icon.blue { background: rgba(14, 165, 233, 0.15); color: var(--accent-primary); }
.stat-icon.purple { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.stat-icon.orange { background: rgba(234, 179, 8, 0.15); color: var(--warning); }

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* 卡片 */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 500;
}

.card-body {
    padding: 20px;
}

/* 快速开始指南 */
.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.guide-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.step-content code {
    background: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

.step-content .hint {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 域名网格 */
.domains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.domain-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.domain-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.domain-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.domain-card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.domain-card-header .delete-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

.domain-card-header .delete-btn:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.domain-card-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.domain-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 域名详情 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: var(--accent-primary);
}

.breadcrumb span {
    color: var(--text-primary);
    font-weight: 500;
}

.domain-info-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    margin-bottom: 20px;
}

.domain-info h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.domain-ns {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.domain-ns code {
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

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

.table th,
.table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.table tr:hover td {
    background: var(--bg-hover);
}

.table .loading {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
}

.record-type {
    display: inline-block;
    padding: 3px 8px;
    background: rgba(14, 165, 233, 0.15);
    color: var(--accent-primary);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
}

.record-name {
    font-family: var(--font-mono);
    font-weight: 500;
}

.record-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 输入框 */
.input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

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

/* 表单 */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-hint {
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* DNS 测试 */
.test-form {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.test-form .input {
    flex: 1;
}

.test-result {
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    padding: 14px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    min-height: 50px;
    display: none;
}

.test-result.show {
    display: block;
}

.test-result.success {
    border-left: 3px solid var(--success);
}

.test-result.error {
    border-left: 3px solid var(--error);
}

/* 日志 */
.logs-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    max-height: 600px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-secondary);
}

/* 加载占位符 */
.loading-placeholder {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
}

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

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.9rem;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 460px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
}

.modal-close {
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
}

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 12px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 260px;
    font-size: 0.9rem;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--error); }
.toast.info { border-left: 3px solid var(--info); }

/* 滚动条 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* SSL证书管理样式 */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.radio-label:hover {
    background: var(--bg-hover);
}

.radio-label input[type="radio"] {
    margin-top: 3px;
    accent-color: var(--accent-primary);
}

.radio-label input[type="radio"]:checked + span {
    color: var(--accent-primary);
}

.radio-label span {
    font-weight: 500;
}

.radio-label small {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 4px;
}

.dns-record-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
}

.dns-record-item code {
    background: var(--bg-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.dns-record-item .copy-text {
    cursor: pointer;
    word-break: break-all;
}

.dns-record-item .copy-text:hover {
    background: var(--accent-primary);
    color: white;
}

.cert-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cert-info .info-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.cert-info .info-row:last-child {
    border-bottom: none;
}

.cert-info .label {
    color: var(--text-muted);
    font-weight: 500;
}

.cert-info .value {
    font-family: var(--font-mono);
}

.cert-files {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.file-item.exists .file-status {
    color: var(--success);
}

.file-item.missing .file-status {
    color: var(--error);
}

.file-name {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.modal-lg .modal-content {
    max-width: 700px;
}

.badge-info {
    background: rgba(14, 165, 233, 0.15);
    color: var(--accent-primary);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.alert-info {
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.3);
    color: var(--accent-primary);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        z-index: 100;
        transition: left 0.3s ease;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .domains-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-files {
        grid-template-columns: 1fr;
    }
}

/* ==================== CDN解析地址样式 ==================== */
.cdn-resolve-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cdn-cname {
    display: inline-block;
    padding: 4px 8px;
    background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    color: white;
    border-radius: 4px;
    font-size: 12px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
}

.cdn-cname:hover {
    transform: scale(1.02);
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.4);
}

.cdn-resolve-hint {
    font-size: 11px;
    color: var(--text-muted);
}

.cdn-resolve-note {
    color: var(--text-secondary);
}

.cdn-resolve-note code {
    background: var(--bg-hover);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
}