/* ============================================
   ETF Monitor - 主样式
   ============================================ */

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

:root {
    --bg-primary: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-nav: #ffffff;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --accent: #3B82F6;
    --accent-hover: #2563EB;
    --up-color: #EF4444;    /* 柔和的A股红 */
    --down-color: #10B981;  /* 柔和的A股绿 */
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-card: #1E293B;
    --bg-nav: #1E293B;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    transition: background 0.3s, color 0.3s;
    -webkit-font-smoothing: antialiased;
}

.font-monospace {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
    font-variant-numeric: tabular-nums;
}

/* ---- 导航栏 ---- */
#mainNav {
    background: var(--bg-nav) !important;
    padding: 0.6rem 1.5rem;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}
#mainNav .navbar-brand {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
}
#mainNav .nav-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s;
}
#mainNav .nav-link:hover {
    color: var(--text-primary);
    background: rgba(0,0,0,0.03);
}
[data-theme="dark"] #mainNav .nav-link:hover {
    background: rgba(255,255,255,0.05);
}
#mainNav .nav-link.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}
.navbar-toggler {
    border-color: var(--border-color);
}
.navbar-toggler-icon {
    filter: invert(0.5);
}
[data-theme="dark"] .navbar-toggler-icon {
    filter: invert(0.8);
}
.brand-icon { display: flex; align-items: center; margin-right: 8px; }

/* ---- 主内容 ---- */
.main-content {
    min-height: calc(100vh - 65px);
    padding: 1.5rem 0;
}

/* ---- 卡片通用 ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

/* ---- Dashboard 卡片 ---- */
.dash-card {
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}
.dash-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover) !important;
}

/* ---- 登录页 ---- */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: var(--bg-primary);
    margin-top: -1.5rem; /* 抵消 main-content 的 padding */
}
.login-card {
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    padding: 3rem 2.5rem;
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border-color);
}
.login-header {
    text-align: center;
}
.login-logo {
    display: flex;
    justify-content: center;
}
.login-logo svg {
    filter: drop-shadow(0 4px 6px rgba(59, 130, 246, 0.3));
}
.login-input-group {
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    overflow: hidden;
}
.login-input-group .form-control {
    font-size: 0.95rem;
}
.login-input-group .form-control:focus {
    box-shadow: none;
    border-color: var(--border-color);
}
.login-input-group:focus-within {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.login-input-group:focus-within .input-group-text,
.login-input-group:focus-within .form-control {
    border-color: var(--accent);
}

/* ---- 信号摘要卡片 ---- */
.signal-card {
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}
.signal-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}
.signal-card.active-filter {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.signal-count {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
    font-family: 'Inter', sans-serif;
    letter-spacing: -1px;
    margin-bottom: 4px;
}
.signal-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.dot-buy { background-color: var(--down-color); box-shadow: 0 0 8px rgba(16, 185, 129, 0.4); }
.dot-sell { background-color: var(--up-color); box-shadow: 0 0 8px rgba(239, 68, 68, 0.4); }
.dot-hold { background-color: var(--text-muted); }

/* ---- 筛选按钮 ---- */
.filter-btn {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    background: var(--bg-card);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 20px;
    padding: 0.4rem 1.25rem;
    transition: all 0.2s;
    cursor: pointer;
}
.filter-btn.active, .filter-btn:hover {
    background: var(--text-primary);
    color: var(--bg-card);
    border-color: var(--text-primary);
}

/* ---- 报表表格 ---- */
.table-card {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.report-table {
    font-size: 0.9rem;
    margin-bottom: 0;
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
.report-table thead th {
    background: rgba(248, 250, 252, 0.5);
    border-bottom: 1px solid var(--border-color);
    border-top: none;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 1rem;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 1;
    cursor: pointer;
    transition: color 0.2s;
}
[data-theme="dark"] .report-table thead th {
    background: rgba(30, 41, 59, 0.5);
}
.report-table thead th:hover {
    color: var(--text-primary);
}
.report-table tbody tr {
    transition: background 0.2s;
}
.report-table tbody tr:hover {
    background: rgba(241, 245, 249, 0.5);
}
[data-theme="dark"] .report-table tbody tr:hover {
    background: rgba(51, 65, 85, 0.3);
}
.report-table td {
    vertical-align: middle;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    color: var(--text-primary);
}
.report-table tbody tr:last-child td {
    border-bottom: none;
}

.sticky-col {
    position: sticky;
    left: 0;
    background: inherit;
    z-index: 2;
}
.report-table tbody tr .sticky-col {
    background: var(--bg-card);
}
.report-table tbody tr:hover .sticky-col {
    background: #F8FAFC;
}
[data-theme="dark"] .report-table tbody tr:hover .sticky-col {
    background: #253347;
}

.stock-info {
    display: flex;
    flex-direction: column;
}
.stock-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
}
.stock-link:hover {
    color: var(--accent);
}
.stock-code {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'Inter', monospace;
}

/* ---- 涨跌颜色 ---- */
.text-up { color: var(--up-color) !important; font-weight: 500; }
.text-down { color: var(--down-color) !important; font-weight: 500; }

/* ---- 信号标签 ---- */
.signal-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid transparent;
}
.signal-tag-buy {
    background: #D1FAE5;
    color: #065F46;
    border-color: #A7F3D0;
}
.signal-tag-sell {
    background: #FEE2E2;
    color: #991B1B;
    border-color: #FECACA;
}
.signal-tag-hold {
    background: #F1F5F9;
    color: #475569;
    border-color: #E2E8F0;
}
.signal-tag-error {
    background: #FEF3C7;
    color: #92400E;
    border-color: #FDE68A;
}

[data-theme="dark"] .signal-tag-buy { background: rgba(16, 185, 129, 0.15); color: #34D399; border-color: rgba(52, 211, 153, 0.2); }
[data-theme="dark"] .signal-tag-sell { background: rgba(239, 68, 68, 0.15); color: #F87171; border-color: rgba(248, 113, 113, 0.2); }
[data-theme="dark"] .signal-tag-hold { background: rgba(148, 163, 184, 0.1); color: #94A3B8; border-color: rgba(148, 163, 184, 0.2); }

/* ---- 偏离度进度条 ---- */
.deviation-bar {
    display: inline-block;
    width: 60px;
    height: 6px;
    border-radius: 4px;
    background: var(--border-color);
    position: relative;
    vertical-align: middle;
    margin-left: 8px;
    overflow: hidden;
}
.deviation-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
    background: var(--text-muted);
    opacity: 0.5;
}
.deviation-bar-fill {
    position: absolute;
    top: 0;
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease-out, background-color 0.3s;
}

/* ---- 页面标题区 ---- */
.page-header {
    margin-bottom: 1.5rem;
}
.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
    letter-spacing: -0.5px;
}
.page-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ---- 按钮 ---- */
.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}
.btn-outline-primary {
    color: var(--accent);
    border-color: var(--accent);
    background: transparent;
}
.btn-outline-primary:hover {
    background: var(--accent);
    color: #fff;
}
[data-theme="dark"] .btn-outline-primary {
    color: #60A5FA;
    border-color: #60A5FA;
}
[data-theme="dark"] .btn-outline-primary:hover {
    background: #60A5FA;
    color: #0F172A;
}

/* ---- 杂项 ---- */
.toast-custom { min-width: 250px; }

/* ---- 响应式 ---- */
@media (max-width: 768px) {
    .signal-count { font-size: 1.5rem; }
    .report-table { font-size: 0.85rem; }
    #mainNav { padding: 0.5rem 1rem; }
    .main-content { padding: 1rem 0; }
    .card { border-radius: 10px; }
}

/* ---- 暗色模式下的表格重置 ---- */
[data-theme="dark"] .table { --bs-table-bg: transparent; --bs-table-color: var(--text-primary); }
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}
[data-theme="dark"] .modal-content {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}
[data-theme="dark"] .btn-outline-secondary { color: var(--text-secondary); border-color: var(--border-color); }
[data-theme="dark"] .alert { background: var(--bg-card); border-color: var(--border-color); color: var(--text-primary); }