/* ============ PV 采集器 · 暗色主题（对应文档 4.1）============ */
:root {
    --bg: #12141f;
    --panel: #1a1e2e;
    --border: #2a3048;
    --primary: #4d7cfe;
    --green: #2ecc71;
    --yellow: #f1c40f;
    --red: #e74c3c;
    --text: #c8cdd8;
    --title: #ffffff;
    --muted: #7d8497;
    --radius: 8px;
}

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

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
a.link { color: var(--primary); }

.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
.small { font-size: 12px; color: var(--muted); }
.hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.dash { color: var(--muted); margin: 0 6px; }

/* ============ 导航 ============ */
.nav {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
    position: sticky; top: 0; z-index: 100;
}
.nav-inner {
    max-width: 1180px; margin: 0 auto; padding: 0 20px;
    display: flex; align-items: center; justify-content: space-between; height: 52px;
}
.brand { font-size: 16px; font-weight: 700; color: var(--title); }
.brand:hover { text-decoration: none; }
.nav-links a {
    margin-left: 22px; color: var(--text); padding: 4px 10px; border-radius: 6px;
}
.nav-links a:hover { background: rgba(77,124,254,.12); text-decoration: none; }
.nav-links a.active { color: var(--primary); background: rgba(77,124,254,.12); }

/* ============ 布局 ============ */
.container { max-width: 1180px; margin: 0 auto; padding: 24px 20px 60px; }
.page-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; gap: 16px; flex-wrap: wrap;
}
.page-head h1 { font-size: 20px; color: var(--title); }
.page-actions { display: flex; gap: 10px; align-items: center; }

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.03), 0 2px 6px rgba(0,0,0,.25);
    padding: 20px;
    margin-bottom: 20px;
}
.section { font-size: 14px; color: var(--primary); margin: 22px 0 12px; font-weight: 600; }
.form-card .section:first-child { margin-top: 4px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.grid2.wide { grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .grid2, .grid2.wide { grid-template-columns: 1fr; } }

/* ============ 表单 ============ */
.fl { display: block; margin-bottom: 16px; }
.fl-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.checkbox-fl, .radio-fl {
    display: flex; align-items: center; gap: 8px; margin-bottom: 10px;
}
input, select, textarea {
    background: #14172a;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    padding: 8px 10px;
    font-size: 14px;
    width: 100%;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(77,124,254,.18);
}
textarea { resize: vertical; font-family: inherit; }
textarea.mono, input.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; }
input[type="checkbox"], input[type="radio"] { width: auto; accent-color: var(--primary); }
input[type="date"] { color-scheme: dark; }

.pair { display: flex; align-items: center; }
.pair input { width: 120px; }

.quick-dates { display: flex; gap: 6px; margin-top: 8px; }
.quick-dates button {
    background: #14172a; border: 1px solid var(--border); color: var(--muted);
    border-radius: 6px; padding: 3px 10px; cursor: pointer; font-size: 12px;
}
.quick-dates button:hover { border-color: var(--primary); color: var(--primary); }

.form-actions { margin-top: 28px; display: flex; gap: 12px; align-items: center; }

/* 动态行 */
.dyn-rows .dyn-row {
    display: flex; gap: 8px; margin-bottom: 8px; align-items: center;
}
.dyn-rows .dyn-row input { flex: 1; }
.dyn-rows .dyn-row input.ratio { width: 90px; flex: none; }
.dyn-rows .dyn-row select { width: 110px; flex: none; }
.dyn-rows .dyn-row .rm {
    flex: none; width: 28px; height: 28px; padding: 0; text-align: center;
    background: #14172a; border: 1px solid var(--border); border-radius: 6px;
    color: var(--muted); cursor: pointer;
}
.dyn-rows .dyn-row .rm:hover { border-color: var(--red); color: var(--red); }

.curve-grid {
    display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; margin-top: 8px;
}
.curve-grid input { width: 100%; padding: 6px 4px; text-align: center; font-size: 12px; }
.curve-grid-labels { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.curve-grid-labels span { font-size: 10px; color: var(--muted); text-align: center; }

/* ============ 按钮 ============ */
.btn {
    display: inline-block;
    background: #232946;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: background .15s, border-color .15s;
}
.btn:hover { background: #2a3155; text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: #3d6bf0; }
.btn-danger { background: transparent; border-color: var(--border); }
.btn-danger:hover { background: rgba(231,76,60,.15); border-color: var(--red); color: var(--red); }
.btn-sm { padding: 4px 9px; font-size: 12px; border-radius: 5px; }
.btn-lg { padding: 11px 28px; font-size: 15px; }

/* ============ 表格 ============ */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.table th {
    text-align: left; padding: 10px 12px; font-size: 12px; color: var(--muted);
    background: #161a2b; border-bottom: 1px solid var(--border); font-weight: 600;
}
.table td { padding: 10px 12px; border-bottom: 1px solid #232941; font-size: 13px; }
.table tbody tr:nth-child(even) { background: rgba(255,255,255,.015); }
.table tbody tr:hover { background: rgba(77,124,254,.06); }
.table .empty { text-align: center; color: var(--muted); padding: 28px; }
.row-actions { display: flex; gap: 6px; align-items: center; }
.row-actions form { display: inline; }

/* ============ 徽章 ============ */
.badge {
    display: inline-block; padding: 2px 10px; border-radius: 20px;
    font-size: 12px; font-weight: 600;
}
.badge-running { background: rgba(46,204,113,.15); color: var(--green); }
.badge-paused  { background: rgba(241,196,15,.15); color: var(--yellow); }
.badge-stopped { background: rgba(125,132,151,.2);  color: var(--muted); }
.badge-done    { background: rgba(77,124,254,.15);  color: var(--primary); }
.badge-new     { background: rgba(77,124,254,.15);  color: var(--primary); }
.badge-old     { background: rgba(241,196,15,.15);  color: var(--yellow); }

/* ============ 统计卡片 ============ */
.cards-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
@media (max-width: 860px) { .cards-row { grid-template-columns: repeat(2, 1fr); } }
.stat-tile { text-align: center; padding: 18px 12px; }
.stat-num { font-size: 26px; font-weight: 700; color: var(--title); }
.stat-num.ok { color: var(--green); }
.stat-lbl { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ============ 日志 ============ */
.log-box {
    background: #0d0f1a;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    line-height: 1.7;
    color: #9aa3b5;
    max-height: 70vh;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ============ 提示条 ============ */
.alert { padding: 10px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; }
.alert-err { background: rgba(231,76,60,.12); border: 1px solid rgba(231,76,60,.4); color: var(--red); }
.alert-ok  { background: rgba(46,204,113,.12); border: 1px solid rgba(46,204,113,.4); color: var(--green); }

/* ============ 饼图图例 ============ */
.pie-legend { font-size: 14px; line-height: 2.2; }
.pie-legend .swatch {
    display: inline-block; width: 12px; height: 12px; border-radius: 3px;
    margin-right: 8px; vertical-align: middle;
}

/* ============ 其他 ============ */
.batch-panel { padding: 16px; width: 640px; max-width: 100%; }
canvas { max-width: 100%; }

/* ============ 登录页 ============ */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-card { width: 380px; max-width: 100%; }
.login-title { text-align: center; font-size: 20px; color: var(--title); margin-bottom: 16px; }
.nav-links a.nav-logout { color: var(--muted); }

/* ============ 代理池工具栏 / 检测进度 ============ */
.toolbar {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    margin-bottom: 12px;
}
.toolbar .hint { margin: 0 6px 0 0; }
.check-progress {
    flex: 1; min-width: 160px; height: 8px; border-radius: 4px;
    background: var(--bg2, #232946); overflow: hidden;
}
.check-progress > div {
    height: 100%; background: var(--primary); border-radius: 4px;
    transition: width .5s ease;
}
.spinner {
    width: 14px; height: 14px; border-radius: 50%;
    border: 2px solid var(--border); border-top-color: var(--primary);
    display: inline-block; animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ 代理池 tab ============ */
.tabs {
    display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
    margin: 14px 0;
}
.tab {
    padding: 7px 16px; border-radius: 8px; font-size: 14px;
    color: var(--muted); border: 1px solid var(--border);
    background: transparent;
}
.tab:hover { color: var(--text, #e8eaf6); text-decoration: none; }
.tab.active {
    background: var(--primary); border-color: var(--primary); color: #fff;
}