/* ===================================================================
   竞品价格监控 2.0 — 设计系统
   设计令牌 / 明暗主题 / 侧边栏布局 / 组件样式
   叠加在 Bootstrap 5 之上，向下兼容 1.0 自定义类
=================================================================== */

/* ---------- 设计令牌：亮色（默认） ---------- */
:root {
    /* 品牌主色 — 现代靛蓝 */
    --pm-primary: #4f46e5;
    --pm-primary-hover: #4338ca;
    --pm-primary-soft: #eef2ff;
    --pm-accent: #0ea5e9;

    /* 语义色 */
    --pm-success: #16a34a;
    --pm-success-soft: #dcfce7;
    --pm-danger: #dc2626;
    --pm-danger-soft: #fee2e2;
    --pm-warning: #d97706;
    --pm-warning-soft: #fef3c7;
    --pm-info: #0891b2;
    --pm-info-soft: #cffafe;

    /* 表面 / 背景 */
    --pm-bg: #f1f5f9;
    --pm-surface: #ffffff;
    --pm-surface-2: #f8fafc;
    --pm-surface-3: #f1f5f9;
    --pm-sidebar: #0f172a;
    --pm-sidebar-hover: #1e293b;
    --pm-sidebar-active: #4f46e5;

    /* 文字 */
    --pm-text: #0f172a;
    --pm-text-secondary: #64748b;
    --pm-text-tertiary: #94a3b8;
    --pm-text-on-dark: #e2e8f0;
    --pm-text-on-dark-muted: #94a3b8;

    /* 边框 / 分隔 */
    --pm-border: #e2e8f0;
    --pm-border-strong: #cbd5e1;

    /* 圆角 */
    --pm-radius-sm: 6px;
    --pm-radius: 10px;
    --pm-radius-lg: 16px;

    /* 阴影 */
    --pm-shadow-sm: 0 1px 2px rgba(15,23,42,0.04), 0 1px 3px rgba(15,23,42,0.06);
    --pm-shadow: 0 4px 6px -1px rgba(15,23,42,0.07), 0 2px 4px -2px rgba(15,23,42,0.05);
    --pm-shadow-lg: 0 10px 25px -5px rgba(15,23,42,0.12);

    /* 间距 */
    --pm-sidebar-w: 248px;
    --pm-sidebar-w-collapsed: 64px;
    --pm-topbar-h: 60px;

    /* 字体 */
    --pm-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --pm-mono: "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;

    /* 旧令牌兼容（1.0 页面引用） */
    --primary-color: var(--pm-primary);
    --success-color: var(--pm-success);
    --danger-color: var(--pm-danger);
    --warning-color: var(--pm-warning);
    --info-color: var(--pm-info);
    --bg-light: var(--pm-bg);
    --border-color: var(--pm-border);
}

/* ---------- 设计令牌：暗色 ---------- */
[data-theme="dark"] {
    --pm-primary: #818cf8;
    --pm-primary-hover: #a5b4fc;
    --pm-primary-soft: #312e81;
    --pm-accent: #38bdf8;

    --pm-success: #4ade80;
    --pm-success-soft: #14532d;
    --pm-danger: #f87171;
    --pm-danger-soft: #7f1d1d;
    --pm-warning: #fbbf24;
    --pm-warning-soft: #78350f;
    --pm-info: #22d3ee;
    --pm-info-soft: #155e63;

    --pm-bg: #0f172a;
    --pm-surface: #1e293b;
    --pm-surface-2: #1e293b;
    --pm-surface-3: #334155;
    --pm-sidebar: #020617;
    --pm-sidebar-hover: #1e293b;
    --pm-sidebar-active: #4f46e5;

    --pm-text: #f1f5f9;
    --pm-text-secondary: #94a3b8;
    --pm-text-tertiary: #64748b;
    --pm-text-on-dark: #e2e8f0;
    --pm-text-on-dark-muted: #94a3b8;

    --pm-border: #334155;
    --pm-border-strong: #475569;

    --pm-shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --pm-shadow: 0 4px 6px -1px rgba(0,0,0,0.4);
    --pm-shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.5);

    --bg-light: var(--pm-bg);
    --border-color: var(--pm-border);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
body {
    font-family: var(--pm-font);
    font-size: 14px;
    line-height: 1.6;
    background-color: var(--pm-bg);
    color: var(--pm-text);
    transition: background-color .2s ease, color .2s ease;
}
a { color: var(--pm-primary); text-decoration: none; }
a:hover { color: var(--pm-primary-hover); }
.text-muted { color: var(--pm-text-secondary) !important; }
.text-primary { color: var(--pm-primary) !important; }
.text-success { color: var(--pm-success) !important; }
.text-danger { color: var(--pm-danger) !important; }
.text-warning { color: var(--pm-warning) !important; }
::selection { background: var(--pm-primary-soft); }

/* ---------- 布局：侧边栏 + 顶栏 ---------- */
.pm-layout { display: flex; min-height: 100vh; }
.pm-sidebar {
    width: var(--pm-sidebar-w);
    background: var(--pm-sidebar);
    color: var(--pm-text-on-dark);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1040;
    transition: width .2s ease, transform .25s ease;
}
.pm-sidebar-brand {
    height: var(--pm-topbar-h);
    display: flex; align-items: center; gap: 10px;
    padding: 0 20px;
    font-size: 16px; font-weight: 600;
    color: #fff;
    white-space: nowrap; overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.pm-sidebar-brand i { color: var(--pm-primary); font-size: 22px; }
.pm-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.pm-nav-section { padding: 10px 14px 4px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--pm-text-on-dark-muted); }
.pm-nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 9px 14px; margin: 2px 0;
    border-radius: var(--pm-radius-sm);
    color: var(--pm-text-on-dark); font-size: 14px;
    white-space: nowrap;
    transition: background .15s, color .15s;
}
.pm-nav-item i { font-size: 17px; width: 20px; text-align: center; flex-shrink: 0; }
.pm-nav-item:hover { background: var(--pm-sidebar-hover); color: #fff; }
.pm-nav-item.active { background: var(--pm-sidebar-active); color: #fff; font-weight: 500; }
.pm-nav-badge { margin-left: auto; }
.pm-sidebar-footer { padding: 12px; border-top: 1px solid rgba(255,255,255,0.06); }

.pm-main {
    flex: 1;
    margin-left: var(--pm-sidebar-w);
    display: flex; flex-direction: column;
    min-width: 0;
    transition: margin-left .25s ease;
}
.pm-topbar {
    height: var(--pm-topbar-h);
    background: var(--pm-surface);
    border-bottom: 1px solid var(--pm-border);
    display: flex; align-items: center;
    gap: 12px;
    padding: 0 24px;
    position: sticky; top: 0; z-index: 1020;
}
.pm-topbar-title { font-size: 16px; font-weight: 600; color: var(--pm-text); }
.pm-topbar-spacer { flex: 1; }
.pm-toggle-btn {
    width: 38px; height: 38px; border-radius: var(--pm-radius-sm);
    border: 1px solid var(--pm-border); background: var(--pm-surface);
    color: var(--pm-text-secondary); display: inline-flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all .15s;
}
.pm-toggle-btn:hover { background: var(--pm-surface-3); color: var(--pm-text); }
.pm-content { padding: 24px; flex: 1; }

/* 移动端遮罩 */
.pm-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(15,23,42,.5); z-index: 1035;
}

/* ---------- 响应式 ---------- */
@media (max-width: 991.98px) {
    .pm-sidebar { transform: translateX(-100%); }
    .pm-sidebar.show { transform: translateX(0); }
    .pm-main { margin-left: 0; }
    .pm-overlay.show { display: block; }
}

/* ---------- 卡片 ---------- */
.card {
    background: var(--pm-surface);
    border: 1px solid var(--pm-border);
    border-radius: var(--pm-radius);
    box-shadow: var(--pm-shadow-sm);
    margin-bottom: 1rem;
    transition: box-shadow .2s, border-color .2s;
}
.card:hover { box-shadow: var(--pm-shadow); }
.card-header {
    font-weight: 600;
    font-size: 14px;
    background: var(--pm-surface);
    color: var(--pm-text);
    border-bottom: 1px solid var(--pm-border);
    padding: 14px 18px;
}
.card-body { padding: 18px; }
.card-body.p-0 { padding: 0; }

/* ---------- 统计卡片 ---------- */
.stat-card {
    border-left: 4px solid var(--pm-primary);
    background: var(--pm-surface);
}
.stat-card.success { border-left-color: var(--pm-success); }
.stat-card.danger  { border-left-color: var(--pm-danger); }
.stat-card.warning { border-left-color: var(--pm-warning); }
.stat-card.info    { border-left-color: var(--pm-info); }
.stat-value { font-size: 30px; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--pm-text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }

/* ---------- 价格涨跌 ---------- */
.price-up   { color: var(--pm-danger); font-weight: 600; }
.price-down { color: var(--pm-success); font-weight: 600; }
.price-same { color: var(--pm-text-secondary); }

/* ---------- 平台徽标 ---------- */
.badge-platform-jd      { background-color: #e1251b; }
.badge-platform-tmall   { background-color: #ff0036; }
.badge-platform-taobao  { background-color: #ff6700; }

/* ---------- 表格 ---------- */
.table { --bs-table-bg: transparent; --bs-table-color: var(--pm-text); margin-bottom: 0; }
.table > :not(caption) > * > * { padding: .55rem .85rem; }
.table thead th { background: var(--pm-surface-3); color: var(--pm-text-secondary); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--pm-border); }
.table tbody td { border-color: var(--pm-border); }
.table-hover tbody tr:hover { cursor: pointer; background: var(--pm-surface-3); }
.table-light { color: var(--pm-text-secondary); background: var(--pm-surface-3); }
[data-theme="dark"] .table { --bs-table-color-state: var(--pm-text); }

/* ---------- 表单 ---------- */
.form-control, .form-select {
    background: var(--pm-surface);
    border-color: var(--pm-border);
    color: var(--pm-text);
}
.form-control:focus, .form-select:focus {
    border-color: var(--pm-primary);
    box-shadow: 0 0 0 .2rem rgba(79,70,229,.15);
    background: var(--pm-surface);
    color: var(--pm-text);
}
.form-control::placeholder { color: var(--pm-text-tertiary); }
.input-group-text { background: var(--pm-surface-3); border-color: var(--pm-border); color: var(--pm-text-secondary); }

/* ---------- 按钮 ---------- */
.btn-primary { --bs-btn-bg: var(--pm-primary); --bs-btn-border-color: var(--pm-primary); --bs-btn-hover-bg: var(--pm-primary-hover); --bs-btn-hover-border-color: var(--pm-primary-hover); --bs-btn-active-bg: var(--pm-primary-hover); }
.btn-outline-primary { --bs-btn-color: var(--pm-primary); --bs-btn-border-color: var(--pm-primary); --bs-btn-hover-bg: var(--pm-primary); --bs-btn-hover-border-color: var(--pm-primary); --bs-btn-active-bg: var(--pm-primary); }
.btn-sm-icon { padding: .25rem .5rem; line-height: 1; }

/* ---------- 图表容器 ---------- */
.chart-container    { position: relative; height: 350px; }
.chart-container-sm { position: relative; height: 220px; }

/* ---------- 弹窗 / 覆盖层 ---------- */
.modal-content { background: var(--pm-surface); border: 1px solid var(--pm-border); border-radius: var(--pm-radius-lg); }
.modal-header { border-bottom-color: var(--pm-border); }
.modal-body { max-height: 70vh; overflow-y: auto; }
.modal-footer { border-top-color: var(--pm-border); }
.dropdown-menu { background: var(--pm-surface); border-color: var(--pm-border); }
.dropdown-item { color: var(--pm-text); }
.dropdown-item:hover { background: var(--pm-surface-3); }
.dropdown-divider { border-color: var(--pm-border); }

/* ---------- 截图预览 ---------- */
.screenshot-preview { max-width: 100%; border: 1px solid var(--pm-border); border-radius: var(--pm-radius-sm); cursor: pointer; transition: transform .2s; }
.screenshot-preview:hover { transform: scale(1.02); }

/* ---------- Toast ---------- */
.toast-container { position: fixed; top: 76px; right: 20px; z-index: 9999; }
.toast { background: var(--pm-surface); border: 1px solid var(--pm-border); }

/* ---------- 加载覆盖层 ---------- */
.spinner-overlay { position: fixed; inset: 0; background: rgba(241,245,250,.7); display: flex; align-items: center; justify-content: center; z-index: 9998; }
[data-theme="dark"] .spinner-overlay { background: rgba(15,23,42,.7); }

/* ---------- 筛选栏 ---------- */
.filter-bar { background: var(--pm-surface); padding: 12px 16px; border-radius: var(--pm-radius); margin-bottom: 1rem; border: 1px solid var(--pm-border); }

/* ---------- 空状态 ---------- */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--pm-text-secondary); }
.empty-state i { font-size: 48px; margin-bottom: 1rem; opacity: .3; }

/* ---------- 工具类 ---------- */
.text-monospace { font-family: var(--pm-mono); }
.form-check-switch { min-width: 60px; }

/* ---------- 1.0 兼容：顶部导航残留 ---------- */
.main-content { padding-top: 0; min-height: 100vh; }
.navbar.bg-primary { display: none; }