/* Alpha Trade — refined dark dashboard
   color tokens, soft shadows, ample whitespace, monospaced data */

@import url('https://fonts.bunny.net/css?family=inter:400,500,600,700|jetbrains-mono:400,500,600&display=swap');

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

:root {
  --bg: #0b0d11;
  --bg-elev1: #14171d;
  --bg-elev2: #1b1f27;
  --bg-elev3: #232832;
  --border: #2a2f3a;
  --border-strong: #3a4051;
  --fg: #e6eaf2;
  --fg-mute: #9aa3b2;
  --fg-dim: #5e6675;
  --accent: #6aa6ff;
  --accent-glow: rgba(106, 166, 255, 0.18);
  --pos: #4ade80;
  --pos-soft: rgba(74, 222, 128, 0.14);
  --neg: #f87171;
  --neg-soft: rgba(248, 113, 113, 0.14);
  --warn: #fbbf24;
  --warn-soft: rgba(251, 191, 36, 0.14);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 6px 24px rgba(0, 0, 0, 0.4);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --font-data: 'JetBrains Mono', ui-monospace, 'SF Mono', 'Menlo', 'Consolas', monospace;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
  --t-fast: 120ms ease;
  --t-med: 200ms ease;
}

html, body {
  background: var(--bg); color: var(--fg);
  font-family: var(--font-ui);
  font-size: 13.5px; line-height: 1.55;
  font-feature-settings: 'cv11', 'ss01', 'ss03';   /* Inter optical features */
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
.mono, code, pre, .data-table, .kpi-value, .kpi-sub,
input[type="text"], input[type="password"], select, .login-form input {
  font-family: var(--font-data);
  font-feature-settings: 'zero', 'cv02', 'cv09';   /* JetBrains Mono variants */
}

/* === Topbar === */
.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 12px 24px;
  background: linear-gradient(180deg, var(--bg-elev1), var(--bg-elev1) 95%, transparent);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(8px);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--fg); text-decoration: none; font-weight: 600;
}
.brand:hover { color: var(--accent); }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: #fff; font-weight: 700; font-family: var(--font-data); font-size: 16px;
  box-shadow: 0 4px 14px var(--accent-glow);
}
.topnav { display: flex; gap: 4px; flex: 1; }
.topnav a {
  color: var(--fg-mute); text-decoration: none;
  padding: 7px 12px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  transition: all var(--t-fast);
}
.topnav a:hover { color: var(--fg); background: var(--bg-elev2); }
.topnav a.active {
  color: var(--accent);
  background: var(--accent-glow);
}
.topright { display: flex; gap: 6px; align-items: center; }
.icon-btn, .lang-form button {
  display: inline-flex; align-items: center; justify-content: center;
  height: 30px; padding: 0 11px; border-radius: var(--radius-sm);
  background: var(--bg-elev2); color: var(--fg-mute);
  border: 1px solid var(--border); cursor: pointer;
  font-family: var(--font-ui); font-size: 12px;
  text-decoration: none; transition: all var(--t-fast);
}
.icon-btn:hover, .lang-form button:hover { color: var(--fg); border-color: var(--border-strong); }
.lang-form { display: inline; }

/* === Page wrapper === */
.page { padding: 20px 24px; max-width: 1700px; margin: 0 auto; }

/* === Footer === */
.bottombar {
  display: flex; justify-content: space-between;
  padding: 12px 24px; border-top: 1px solid var(--border);
  font-size: 11.5px; color: var(--fg-dim);
}

/* === Headings === */
h1 { font-size: 20px; margin-bottom: 16px; font-weight: 600; }
h2 {
  font-size: 12.5px; margin: 28px 0 10px;
  color: var(--fg-mute); text-transform: uppercase;
  letter-spacing: 0.7px; font-weight: 500;
}
h2:first-of-type { margin-top: 0; }
small { color: var(--fg-mute); font-size: 12px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--fg-mute); }
.dim { color: var(--fg-dim); }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.right, .data-table th.right, .data-table td.right { text-align: right; }
.center { text-align: center; }
.empty { padding: 40px; text-align: center; color: var(--fg-mute); font-size: 13px; }
.mono { font-family: var(--font-data); }

/* === KPI grid === */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.kpi {
  background: linear-gradient(180deg, var(--bg-elev2), var(--bg-elev1));
  border: 1px solid var(--border); padding: 14px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: transform var(--t-med), border-color var(--t-med);
}
.kpi:hover { transform: translateY(-1px); border-color: var(--border-strong); }
.kpi-label {
  color: var(--fg-mute); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.6px; font-weight: 500;
}
.kpi-value {
  font-size: 22px; font-weight: 600; margin: 6px 0 4px;
  font-family: var(--font-data); letter-spacing: -0.3px;
}
.kpi-sub { color: var(--fg-mute); font-size: 11.5px; font-family: var(--font-data); }

/* === Tables === */
.data-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-elev1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-data); font-size: 12.5px;
  font-variant-numeric: tabular-nums;   /* 等宽数字保证列对齐 */
  margin-bottom: 16px;
}
.data-table th, .data-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table th {
  text-align: left; color: var(--fg-mute); font-weight: 500;
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
  background: var(--bg-elev2);
  /* sticky 与 overflow:hidden + canvas 遮挡冲突，去掉避免错位 */
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(106, 166, 255, 0.04); }
.data-table.compact th, .data-table.compact td { padding: 5px 10px; font-size: 12px; }

/* === Two-col split === */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 1100px) { .two-col { grid-template-columns: 1fr; } }

/* === Badges === */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 10.5px; font-weight: 500;
  background: var(--bg-elev3); color: var(--fg-mute);
  text-transform: uppercase; letter-spacing: 0.4px;
}
.badge.ok { background: var(--pos-soft); color: var(--pos); }
.badge.skip, .badge[class*="skip:"] { background: var(--warn-soft); color: var(--warn); }
.badge.stop_loss, .badge.liquidation { background: var(--neg-soft); color: var(--neg); }
.badge.take_profit { background: var(--pos-soft); color: var(--pos); }
.badge.signal_reverse, .badge.manual, .badge.shutdown { background: var(--bg-elev3); color: var(--fg-mute); }

/* === Forms === */
input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 16px; height: 16px; border-radius: 3px;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-elev1);
  cursor: pointer; position: relative;
  transition: all var(--t-fast);
}
input[type="checkbox"]:checked {
  background: var(--accent); border-color: var(--accent);
}
input[type="checkbox"]:checked::after {
  content: "✓"; color: #fff; font-weight: 700;
  position: absolute; top: -2px; left: 2px; font-size: 12px;
}

button { font-family: inherit; }

/* === Canvas / charts === */
canvas {
  background: var(--bg-elev1); border: 1px solid var(--border);
  border-radius: var(--radius); display: block;
}

/* ===== Login page ===== */
.login-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; background: radial-gradient(ellipse at 30% 20%, rgba(106, 166, 255, 0.10), transparent 60%), var(--bg);
  padding: 24px;
}
.login-card {
  width: 380px; background: var(--bg-elev1);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-2);
}
.login-brand { text-align: center; margin-bottom: 28px; }
.login-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: #fff; font-size: 30px; font-weight: 700; font-family: var(--font-data);
  margin: 0 auto 14px; box-shadow: 0 8px 30px var(--accent-glow);
}
.login-brand h1 { font-size: 20px; margin-bottom: 4px; }
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label {
  display: flex; flex-direction: column; gap: 5px;
  font-size: 12px; color: var(--fg-mute);
}
.login-form input {
  height: 38px; padding: 0 12px;
  background: var(--bg-elev2);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--fg); font-family: var(--font-data); font-size: 14px;
  transition: border-color var(--t-fast);
}
.login-form input:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.login-error {
  background: var(--neg-soft); color: var(--neg);
  padding: 8px 12px; border-radius: var(--radius-sm); font-size: 12.5px;
}
.login-submit {
  height: 40px; margin-top: 8px;
  background: var(--accent); color: #0b1426;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 13px; font-weight: 600;
  transition: filter var(--t-fast);
}
.login-submit:hover { filter: brightness(1.1); }
.login-footer {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 24px; padding-top: 16px;
  border-top: 1px solid var(--border);
}
.lang-link {
  background: none; border: none; color: var(--fg-mute);
  cursor: pointer; font-size: 12px;
}
.lang-link:hover { color: var(--accent); }

/* ===== Heatmap (GitHub-style) ===== */
.heat-wrap {
  background: var(--bg-elev1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 20px 16px; overflow-x: auto;
  margin-bottom: 24px;
}
.heat-grid {
  display: inline-grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 14px);
  gap: 3px;
}
.heat-month-row {
  display: flex; gap: 3px;
  margin-bottom: 8px; padding-left: 28px;
  font-size: 10px; color: var(--fg-mute);
}
.heat-row-labels {
  display: inline-grid; grid-template-rows: repeat(7, 14px);
  gap: 3px; margin-right: 6px; font-size: 10px;
  color: var(--fg-dim); padding-top: 22px;
}
.heat-cell {
  width: 14px; height: 14px; border-radius: 3px;
  background: var(--bg-elev3);
  cursor: pointer;
  transition: transform var(--t-fast), outline var(--t-fast);
}
.heat-cell:hover { outline: 1.5px solid var(--accent); transform: scale(1.15); }
.heat-cell.lvl-0 { background: var(--bg-elev3); }
.heat-cell.lvl-1 { background: rgba(74, 222, 128, 0.25); }
.heat-cell.lvl-2 { background: rgba(74, 222, 128, 0.45); }
.heat-cell.lvl-3 { background: rgba(74, 222, 128, 0.7); }
.heat-cell.lvl-4 { background: var(--pos); }
.heat-cell.selected { outline: 2px solid var(--accent); transform: scale(1.18); }
.heat-cell.future { opacity: 0.3; cursor: not-allowed; }
.heat-legend {
  display: flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: 11px; color: var(--fg-mute);
}
.heat-legend .swatch {
  width: 12px; height: 12px; border-radius: 3px;
}

/* ===== Day detail panel ===== */
.day-detail {
  background: var(--bg-elev1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
}
.day-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 16px;
}
.day-header h3 { font-size: 16px; font-family: var(--font-data); }
.day-summary-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px; margin-bottom: 20px;
}
.day-stat {
  background: var(--bg-elev2); padding: 10px 14px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.day-stat-label { color: var(--fg-mute); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.day-stat-value { font-family: var(--font-data); font-size: 17px; margin-top: 4px; font-weight: 600; }

/* ===== Chart page ===== */
.chart-toolbar {
  display: flex; gap: 12px; align-items: center;
  margin-bottom: 14px;
}
.chart-toolbar select {
  height: 32px; padding: 0 10px;
  background: var(--bg-elev2); color: var(--fg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-family: var(--font-data); font-size: 13px; cursor: pointer;
}
.chart-toolbar select:focus { outline: none; border-color: var(--accent); }
.chart-container {
  background: var(--bg-elev1); border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
#tv-chart { width: 100%; height: 560px; min-height: 400px; }
.chart-legend {
  display: flex; gap: 18px; margin-top: 12px;
  font-size: 12px; color: var(--fg-mute);
}
.chart-legend .dot {
  display: inline-block; width: 10px; height: 10px;
  border-radius: 50%; margin-right: 6px; vertical-align: middle;
}

/* ===== Misc ===== */
.range-tabs {
  display: inline-flex; gap: 2px;
  background: var(--bg-elev2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 2px;
}
.range-tabs a {
  padding: 4px 12px; color: var(--fg-mute);
  border-radius: 4px; font-size: 12px; transition: all var(--t-fast);
}
.range-tabs a.active { background: var(--accent); color: #0b1426; }

.csv-link {
  display: inline-flex; align-items: center; gap: 6px;
  height: 30px; padding: 0 12px;
  background: var(--bg-elev2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--fg-mute);
  font-size: 12px;
}
.csv-link:hover { color: var(--fg); border-color: var(--border-strong); text-decoration: none; }