:root {
  color-scheme: dark;
  --bg: #071014;
  --surface: #0c181d;
  --surface-2: #112127;
  --line: rgba(197, 224, 231, 0.13);
  --line-strong: rgba(197, 224, 231, 0.24);
  --text: #e7f0f2;
  --muted: #87a0a7;
  --cyan: #67e5dc;
  --cyan-soft: rgba(103, 229, 220, 0.14);
  --amber: #f5bd62;
  --amber-soft: rgba(245, 189, 98, 0.16);
  --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 88% 8%, rgba(26, 87, 92, 0.28), transparent 30rem),
    radial-gradient(circle at 15% 65%, rgba(49, 55, 36, 0.13), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 16px;
}

button, select { font: inherit; }

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  z-index: 20;
}

.site-header, main, footer {
  width: min(1480px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-family: "DM Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.brand b { color: var(--cyan); font-weight: 500; }

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 3px;
}

.brand-mark i { display: block; background: var(--cyan); border-radius: 2px; }
.brand-mark i:nth-child(1) { height: 45%; opacity: 0.5; }
.brand-mark i:nth-child(2) { height: 90%; }
.brand-mark i:nth-child(3) { height: 65%; opacity: 0.72; }

.header-meta {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(103, 229, 220, 0.7);
}

main { padding: 48px 0 20px; }

.summary-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1.5fr) repeat(4, minmax(145px, 0.7fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.intro-block, .metric { background: rgba(9, 21, 25, 0.94); }

.intro-block { padding: 34px; }

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 12px;
  font-size: clamp(2.2rem, 4vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.intro-copy {
  max-width: 520px;
  margin-bottom: 28px;
  color: var(--muted);
  line-height: 1.55;
}

.period-control {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.18);
}

.period-control button {
  min-width: 48px;
  padding: 7px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
}

.period-control button:hover, .period-control button:focus-visible { color: var(--text); }
.period-control button.active { background: var(--cyan); color: #061214; }

.metric {
  min-height: 180px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-label, .metric-detail {
  color: var(--muted);
  font-size: 0.78rem;
}

.metric-label { font-family: "DM Mono", monospace; text-transform: uppercase; letter-spacing: 0.06em; }
.metric strong { font-size: clamp(2rem, 3.3vw, 3.8rem); letter-spacing: -0.06em; }
.metric-primary strong { color: var(--cyan); }
.metric-accent strong { color: var(--amber); }

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(14, 29, 34, 0.92), rgba(8, 18, 22, 0.94));
  overflow: hidden;
}

.trend-panel { margin-top: 18px; padding: 28px 30px 20px; }

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
}

.legend { display: flex; gap: 18px; color: var(--muted); font-size: 0.78rem; }
.legend span { display: flex; align-items: center; gap: 7px; }
.legend i { width: 16px; height: 3px; display: inline-block; border-radius: 2px; }
.legend-volume { background: var(--cyan); }
.legend-sessions { background: var(--amber); }

.chart { width: 100%; min-height: 220px; }
.large-chart { height: 330px; margin-top: 18px; }
.chart svg { width: 100%; height: 100%; overflow: visible; }
.axis-text { fill: var(--muted); font-family: "DM Mono", monospace; font-size: 11px; }
.grid-line { stroke: var(--line); stroke-width: 1; }
.volume-area { fill: url(#volumeGradient); }
.volume-line { fill: none; stroke: var(--cyan); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.session-bar { fill: rgba(245, 189, 98, 0.5); }
.point { fill: var(--cyan); stroke: var(--bg); stroke-width: 2; }

.insights-panel { margin-top: 18px; padding: 28px 30px; }
.insight-kpis {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}
.insight-kpis > div { padding: 18px 20px 18px 0; }
.insight-kpis > div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.insight-kpis span, .insight-kpis small { display: block; color: var(--muted); }
.insight-kpis span { margin-bottom: 8px; font-size: 0.75rem; }
.insight-kpis strong { display: block; font-size: 1.65rem; }
.insight-kpis small { margin-top: 4px; font-size: 0.68rem; }
.insight-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  margin-top: 26px;
}
.insight-columns h3 { margin: 0 0 12px; font-size: 0.88rem; }
.insight-list { border-top: 1px solid var(--line); }
.insight-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}
.insight-row span, .insight-row strong, .insight-row small { display: block; }
.insight-row strong { font-size: 0.8rem; font-weight: 600; }
.insight-row small { margin-top: 3px; color: var(--muted); font-size: 0.68rem; }
.insight-row b { font-family: "DM Mono", monospace; font-size: 0.76rem; white-space: nowrap; }
.insight-row b.positive { color: var(--cyan); }
.insight-row b.stable { color: var(--amber); }
.insight-empty { margin: 16px 0; color: var(--muted); font-size: 0.78rem; }
.insight-method { margin: 18px 0 0; color: var(--muted); font-size: 0.7rem; line-height: 1.55; }

.dashboard-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.75fr);
  gap: 18px;
}

.explorer-panel { grid-column: 1 / -1; padding: 28px 30px; }
.rhythm-panel, .routine-panel, .records-panel { padding: 28px 30px; }
.records-panel { grid-column: 1 / -1; }

.exercise-controls { display: flex; align-items: flex-end; gap: 12px; }
.select-wrap { display: block; }
.select-wrap > span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.select-wrap select {
  width: min(360px, 38vw);
  padding: 10px 40px 10px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  outline: none;
}

.metric-select-wrap select { width: min(190px, 24vw); }
.select-wrap select:focus { border-color: var(--cyan); }

.exercise-stats {
  margin: 28px 0 12px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}

.exercise-stats div { padding: 18px 0; }
.exercise-stats div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.exercise-stats span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 0.75rem; }
.exercise-stats strong { font-size: 1.45rem; }
.exercise-chart { position: relative; height: 350px; touch-action: pan-y; }
.exercise-chart svg { cursor: crosshair; }
.chart-hover-line {
  opacity: 0;
  stroke: rgba(245, 189, 98, 0.5);
  stroke-width: 1;
  stroke-dasharray: 4 5;
  transition: opacity 120ms ease;
}
.chart-hover-point {
  opacity: 0;
  fill: var(--amber);
  stroke: var(--bg);
  stroke-width: 3;
  transition: opacity 120ms ease;
}
.chart-hover-line.visible, .chart-hover-point.visible { opacity: 1; }
.chart-tooltip {
  position: absolute;
  z-index: 2;
  min-width: 142px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: rgba(8, 22, 27, 0.96);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -100%);
  transition: opacity 100ms ease;
}
.chart-tooltip.visible { opacity: 1; }
.chart-tooltip strong, .chart-tooltip span, .chart-tooltip small { display: block; }
.chart-tooltip strong { color: var(--amber); font-size: 1rem; }
.chart-tooltip span { margin-top: 3px; color: var(--text); font-size: 0.76rem; }
.chart-tooltip small { margin-top: 3px; color: var(--muted); font-size: 0.68rem; }

.recent-count {
  color: var(--amber);
  font-size: 2.2rem;
  letter-spacing: -0.05em;
}

.heatmap {
  margin-top: 30px;
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 9px);
  grid-auto-columns: minmax(4px, 1fr);
  gap: 3px;
}

.heatmap i { display: block; border-radius: 2px; background: rgba(135, 160, 167, 0.11); }
.heatmap i.level-1 { background: rgba(103, 229, 220, 0.26); }
.heatmap i.level-2 { background: rgba(103, 229, 220, 0.5); }
.heatmap i.level-3 { background: var(--cyan); }

.heatmap-scale { margin-top: 14px; display: flex; align-items: center; justify-content: flex-end; gap: 5px; color: var(--muted); font-size: 0.68rem; }
.heatmap-scale i { width: 9px; height: 9px; border-radius: 2px; background: rgba(135, 160, 167, 0.11); }
.heatmap-scale i:nth-of-type(2) { background: rgba(103, 229, 220, 0.26); }
.heatmap-scale i:nth-of-type(3) { background: rgba(103, 229, 220, 0.5); }
.heatmap-scale i:nth-of-type(4) { background: var(--cyan); }

.routine-list, .records-list { margin-top: 22px; }
.routine-row { display: grid; grid-template-columns: minmax(110px, 1fr) 2fr 34px; gap: 12px; align-items: center; margin: 11px 0; }
.routine-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #cbdadd; font-size: 0.78rem; }
.routine-track { height: 6px; overflow: hidden; border-radius: 999px; background: rgba(135, 160, 167, 0.1); }
.routine-fill { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), #3a9693); }
.routine-count { text-align: right; color: var(--muted); font-family: "DM Mono", monospace; font-size: 0.72rem; }

.records-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.record { min-width: 0; padding: 18px; background: var(--surface); }
.record-date { color: var(--muted); font-family: "DM Mono", monospace; font-size: 0.66rem; }
.record h3 { margin: 10px 0 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.92rem; font-weight: 600; }
.record strong { display: block; color: var(--amber); font-size: 1.18rem; }
.record small { color: var(--muted); }

footer {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 1120px) {
  .summary-grid { grid-template-columns: repeat(4, 1fr); }
  .intro-block { grid-column: 1 / -1; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .explorer-panel { grid-column: auto; }
  .records-panel { grid-column: auto; }
  .insight-kpis { grid-template-columns: 1fr 1fr; }
  .insight-kpis > div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .insight-kpis > div:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 720px) {
  .site-header, main, footer { width: min(100% - 28px, 1480px); }
  .site-header { height: 72px; }
  .header-meta span:last-child { display: none; }
  main { padding-top: 28px; }
  .summary-grid { grid-template-columns: 1fr 1fr; }
  .intro-block { padding: 28px 22px; }
  .metric { min-height: 150px; padding: 22px 18px; }
  .metric strong { font-size: 2.25rem; }
  .trend-panel, .insights-panel, .explorer-panel, .rhythm-panel, .routine-panel, .records-panel { padding: 22px 18px; }
  .panel-heading { align-items: flex-start; }
  .legend { display: none; }
  .explorer-heading { display: block; }
  .exercise-controls { margin-top: 20px; }
  .select-wrap { flex: 1; }
  .select-wrap select { width: 100%; }
  .exercise-stats { grid-template-columns: 1fr 1fr; }
  .exercise-stats div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .exercise-stats div:nth-child(4) { border-top: 1px solid var(--line); }
  .records-list { grid-template-columns: 1fr 1fr; }
  .large-chart { height: 270px; }
  .heatmap { grid-template-rows: repeat(7, 8px); gap: 2px; }
  .insight-columns { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 440px) {
  .brand { font-size: 0.72rem; }
  .summary-grid { grid-template-columns: 1fr; }
  .metric { min-height: 130px; }
  .insight-kpis { grid-template-columns: 1fr; }
  .insight-kpis > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .exercise-controls { align-items: stretch; flex-direction: column; }
  .exercise-stats { grid-template-columns: 1fr; }
  .exercise-stats div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .records-list { grid-template-columns: 1fr; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}