/* ============================================================
 * 商业邮箱管理系统 - 全局样式
 * 玻璃拟态 + 微动画 + 响应式
 * ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* === 重置 === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease;
}

/* === 动态背景 === */
.bg-mesh {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
    background:
        radial-gradient(ellipse at 20% 50%, var(--accent-primary-glow) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(59,130,246,0.1) 0%, transparent 50%);
    animation: meshFloat 20s ease-in-out infinite;
}
@keyframes meshFloat {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* === 主容器 === */
.app-container {
    position: relative; z-index: 1;
    max-width: 1200px; margin: 0 auto; padding: 20px;
    min-height: 100vh;
}

/* === 顶部导航栏 === */
.top-bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 24px; margin-bottom: 24px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all 0.3s ease;
}
.top-bar:hover { border-color: var(--border-focus); }

.logo {
    display: flex; align-items: center; gap: 12px;
    font-size: 1.25rem; font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.logo-icon {
    width: 36px; height: 36px;
    background: var(--accent-gradient);
    border-radius: 10px; display: flex;
    align-items: center; justify-content: center;
    font-size: 1.1rem;
    -webkit-text-fill-color: white;
}

.user-info {
    display: flex; align-items: center; gap: 16px;
}
.user-credits {
    display: flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 20px;
    background: var(--accent-primary-glow);
    font-size: 0.85rem; font-weight: 500;
    color: var(--accent-primary-hover);
}
.user-credits .icon { font-size: 1rem; }
.user-name {
    font-weight: 500; color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-menu-wrap { position: relative; }
.user-menu-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: 10px;
    background: var(--bg-card); border: 1px solid var(--border-color);
    color: var(--text-primary); cursor: pointer;
    font-size: 0.9rem; font-weight: 500;
    transition: all 0.2s ease;
}
.user-menu-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-focus);
}

.user-dropdown {
    position: absolute; right: 0; top: calc(100% + 8px);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px; min-width: 200px;
    box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 100;
    overflow: hidden;
}
.user-dropdown.show {
    opacity: 1; visibility: visible;
    transform: translateY(0);
}
.user-dropdown a, .user-dropdown button {
    display: flex; align-items: center; gap: 10px;
    width: 100%; padding: 12px 18px;
    color: var(--text-secondary); font-size: 0.9rem;
    background: none; border: none; cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
    text-align: left;
}
.user-dropdown a:hover, .user-dropdown button:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}
.user-dropdown .divider {
    height: 1px; background: var(--border-color);
    margin: 4px 0;
}
.user-dropdown .danger { color: var(--danger); }
.user-dropdown .danger:hover { background: var(--danger-bg); }

/* === 主题切换器 === */
.theme-switcher {
    display: flex; align-items: center; gap: 6px;
    padding: 4px; border-radius: 20px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
}
.theme-dot {
    width: 20px; height: 20px; border-radius: 50%;
    cursor: pointer; border: 2px solid transparent;
    transition: all 0.2s ease;
    position: relative;
}
.theme-dot:hover { transform: scale(1.2); }
.theme-dot.active { border-color: var(--text-primary); box-shadow: var(--shadow-glow); }
.theme-dot[data-theme="dark"] { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.theme-dot[data-theme="ocean"] { background: linear-gradient(135deg, #0ea5e9, #06b6d4); }
.theme-dot[data-theme="violet"] { background: linear-gradient(135deg, #a855f7, #d946ef); }
.theme-dot[data-theme="emerald"] { background: linear-gradient(135deg, #10b981, #14b8a6); }
.theme-dot[data-theme="amber"] { background: linear-gradient(135deg, #f59e0b, #f97316); }

/* === 选项卡 === */
.tab-nav {
    display: flex; gap: 4px; padding: 4px;
    background: var(--bg-input);
    border-radius: 14px; margin-bottom: 24px;
    border: 1px solid var(--border-color);
}
.tab-btn {
    flex: 1; padding: 12px 20px;
    border: none; border-radius: 11px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.9rem; font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    position: relative;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.tab-content {
    display: none; animation: fadeSlideIn 0.35s ease;
}
.tab-content.active { display: block; }

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === 玻璃卡片 === */
.card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px; padding: 28px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}
.card:hover { border-color: var(--border-focus); }
.card-title {
    font-size: 1.2rem; font-weight: 600;
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
}
.card-title .icon { font-size: 1.3rem; }

/* === 统计卡片 === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px; margin-bottom: 24px;
}
.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px; padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
}
.stat-value {
    font-size: 2rem; font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    font-size: 0.8rem; color: var(--text-muted);
    margin-top: 4px; text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === 表单 === */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block; margin-bottom: 6px;
    font-size: 0.85rem; font-weight: 500;
    color: var(--text-secondary);
}
.form-input, .form-select {
    width: 100%; padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px; color: var(--text-primary);
    font-size: 0.95rem; font-family: inherit;
    transition: all 0.2s ease;
    outline: none;
}
.form-input:focus, .form-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}
.form-input::placeholder { color: var(--text-muted); }

.input-group {
    display: flex; align-items: stretch;
    border-radius: 10px; overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}
.input-group:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}
.input-group .form-input {
    border: none; border-radius: 0;
    box-shadow: none;
}
.input-group .input-suffix {
    display: flex; align-items: center;
    padding: 0 16px;
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 0.9rem; white-space: nowrap;
    border-left: 1px solid var(--border-color);
}

/* === 按钮 === */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px; padding: 10px 20px;
    border: none; border-radius: 10px;
    font-size: 0.9rem; font-weight: 500;
    font-family: inherit; cursor: pointer;
    transition: all 0.25s ease;
    position: relative; overflow: hidden;
    text-decoration: none;
}
.btn::after {
    content: ''; position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}
.btn:active::after { width: 300px; height: 300px; }

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
    background: var(--accent-gradient-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

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

.btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: 8px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; }
.btn-warning { background: var(--warning); color: #1a1a1a; }

.btn-full { width: 100%; }
.btn-icon { padding: 8px; min-width: 36px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* === 搜索框 === */
.search-bar {
    display: flex; gap: 10px; margin-bottom: 20px;
}
.search-bar .form-input { flex: 1; }

/* === 表格/列表 === */
.data-table {
    width: 100%; border-collapse: collapse;
}
.data-table th, .data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}
.data-table th {
    font-weight: 600; color: var(--text-muted);
    font-size: 0.8rem; text-transform: uppercase;
    letter-spacing: 0.5px;
}
.data-table tr { transition: background 0.15s ease; }
.data-table tbody tr:hover { background: var(--bg-card-hover); }

.data-table .actions {
    display: flex; gap: 6px; flex-wrap: wrap;
}

/* 移动端卡片列表 */
.mail-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px; padding: 16px;
    margin-bottom: 10px;
    transition: all 0.2s ease;
}
.mail-card:hover {
    border-color: var(--border-focus);
    transform: translateX(4px);
}
.mail-card-email {
    font-weight: 600; font-size: 0.95rem;
    margin-bottom: 8px;
    word-break: break-all;
}
.mail-card-meta {
    display: flex; align-items: center; gap: 12px;
    font-size: 0.8rem; color: var(--text-muted);
    margin-bottom: 10px;
}
.mail-card-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* === 状态标签 === */
.badge {
    display: inline-flex; align-items: center;
    padding: 3px 10px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 600;
}
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-disabled { background: var(--danger-bg); color: var(--danger); }

/* === 分页 === */
.pagination {
    display: flex; align-items: center; justify-content: center;
    gap: 4px; margin-top: 24px;
}
.page-btn {
    min-width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 8px; background: var(--bg-card);
    color: var(--text-secondary); cursor: pointer;
    font-size: 0.85rem; transition: all 0.2s ease;
}
.page-btn:hover { border-color: var(--border-focus); color: var(--text-primary); }
.page-btn.active {
    background: var(--accent-gradient);
    color: #fff; border-color: transparent;
}
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* === 弹窗 === */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--bg-overlay);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden;
    transition: all 0.3s ease;
}
.modal-overlay.show { opacity: 1; visibility: visible; }

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 32px; max-width: 500px; width: 90%;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
}
.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}
.modal-title {
    font-size: 1.2rem; font-weight: 600;
    margin-bottom: 16px;
    display: flex; align-items: center; gap: 10px;
}
.modal-close {
    margin-left: auto; background: none;
    border: none; color: var(--text-muted);
    cursor: pointer; font-size: 1.3rem;
    padding: 4px; border-radius: 6px;
    transition: all 0.2s ease;
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-card); }
.modal-body { margin-bottom: 20px; color: var(--text-secondary); line-height: 1.7; }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; }

/* === 提示框 === */
.toast-container {
    position: fixed; top: 24px; right: 24px;
    z-index: 2000; display: flex;
    flex-direction: column; gap: 8px;
}
.toast {
    padding: 14px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: 0.9rem;
    display: flex; align-items: center; gap: 10px;
    min-width: 300px; max-width: 420px;
    animation: toastIn 0.3s ease;
    transition: all 0.3s ease;
}
.toast.removing { animation: toastOut 0.3s ease forwards; }
.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--danger); }
.toast-info { border-left: 3px solid var(--info); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
    to { opacity: 0; transform: translateX(100%); }
}

/* === Token显示 === */
.token-display {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px; padding: 16px;
    margin: 12px 0; word-break: break-all;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    color: var(--accent-primary-hover);
    position: relative;
}
.token-copy-btn {
    position: absolute; top: 8px; right: 8px;
    cursor: pointer; font-size: 1rem;
}

/* === 前缀切换 === */
.prefix-toggle {
    display: flex; gap: 4px; margin-bottom: 12px;
    background: var(--bg-input);
    border-radius: 8px; padding: 3px;
}
.prefix-toggle-btn {
    flex: 1; padding: 8px;
    border: none; border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.85rem; cursor: pointer;
    transition: all 0.2s ease;
}
.prefix-toggle-btn.active {
    background: var(--accent-gradient);
    color: #fff;
}

/* === 帮助页 === */
.help-section { margin-bottom: 24px; }
.help-section h3 {
    font-size: 1rem; font-weight: 600;
    margin-bottom: 10px;
    color: var(--accent-primary-hover);
}
.help-section p, .help-section li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}
.help-section ul { padding-left: 20px; }

/* === iframe容器 === */
.iframe-container {
    width: 100%; height: calc(100vh - 180px);
    border-radius: 14px; overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
}
.iframe-container iframe {
    width: 100%; height: 100%; border: none;
}
.iframe-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 20px; margin-bottom: 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}
.iframe-header-email {
    font-weight: 600; font-size: 0.95rem;
}

/* === 加载动画 === */
.spinner {
    width: 20px; height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--bg-overlay);
    display: flex; align-items: center; justify-content: center;
    border-radius: inherit; z-index: 10;
}

/* === 空状态 === */
.empty-state {
    text-align: center; padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state .icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 0.95rem; }

/* === 响应式 === */
@media (max-width: 768px) {
    .app-container { padding: 12px; }
    .top-bar { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
    .card { padding: 20px; }
    .tab-btn { padding: 10px 12px; font-size: 0.82rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .search-bar { flex-direction: column; }
    .data-table { display: none; }
    .mail-cards { display: block; }
    .modal { padding: 24px; }
    .user-info { gap: 8px; }
    .theme-switcher { order: 3; width: 100%; justify-content: center; }
}
@media (min-width: 769px) {
    .mail-cards { display: none; }
}

/* === 邮件阅读器内容适配 === */
#mail-read-body {
    background-color: #ffffff !important; /* 强制白色背景，因为大多数 HTML 邮件默认为白色背景设计 */
    color: #1a1a1a !important;            /* 强制深色文字，解决黑色文字在深色背景下看不见的问题 */
    border-radius: 12px;
    margin: 0 20px 20px 20px;
    padding: 24px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    line-height: 1.5;
}

/* 适配 HTML 邮件中的所有元素 */
#mail-read-body * {
    max-width: 100% !important;           /* 防止大图或表格撑破容器 */
    box-sizing: border-box !important;
}

/* 针对纯文本邮件 (pre 标签) */
#mail-read-body pre {
    white-space: pre-wrap !important;
    word-wrap: break-word !important;
    font-family: inherit !important;
    color: #1a1a1a !important;
    margin: 0 !important;
}

/* 邮件头部信息微调 */
#mail-read-header {
    background: transparent;
    margin-bottom: 10px;
}