:root {
  --bg: #08111c;
  --panel: rgba(10, 22, 36, 0.82);
  --panel-strong: rgba(14, 29, 46, 0.94);
  --line: rgba(159, 198, 228, 0.18);
  --text: #eef7ff;
  --muted: #9ab1c6;
  --accent: #68d1ff;
  --accent-strong: #1aa7ff;
  --accent-soft: rgba(104, 209, 255, 0.18);
  --count-min: #4ff0c6;
  --count-min-soft: rgba(79, 240, 198, 0.22);
  --count-max: #ffd16b;
  --count-max-soft: rgba(255, 209, 107, 0.2);
  --alert: #ffd16b;
  --chip: rgba(255, 255, 255, 0.06);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(28, 129, 201, 0.24), transparent 38%),
    radial-gradient(circle at 85% 12%, rgba(89, 199, 255, 0.18), transparent 28%),
    linear-gradient(180deg, #0a1420 0%, #071019 54%, #040b12 100%);
  color: var(--text);
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
}

.shell {
  width: min(1200px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.hero,
.chart-panel,
.top-days,
.sim-panel {
  backdrop-filter: blur(20px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 24px 24px 20px;
}

.credit {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.4rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.meta,
.foot,
.chart-header,
.sim-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.meta {
  margin-top: 16px;
  flex-wrap: wrap;
}

.top-days {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
  padding: 14px;
}

.day-chip {
  background: var(--chip);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 14px 16px;
  min-height: 106px;
}

.day-chip strong {
  display: block;
  font-size: 1.4rem;
  letter-spacing: -0.04em;
}

.day-chip span {
  display: block;
}

.day-chip .date {
  color: var(--text);
  font-size: 1rem;
  margin-bottom: 6px;
}

.day-chip .detail,
.day-chip .subdetail {
  color: var(--muted);
  font-size: 0.88rem;
}

.sim-panel {
  margin-top: 18px;
  padding: 18px;
}

.sim-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.9fr);
  gap: 14px;
  margin-top: 14px;
}

.sim-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.slider-card,
.metric-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  background: var(--chip);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 22px;
}

.slider-card span,
.metric-card span {
  color: var(--muted);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slider-card strong,
.metric-card strong {
  font-size: clamp(1.4rem, 2.5vw, 2.1rem);
  letter-spacing: -0.05em;
}

.slider-card input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.sim-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metric-card:nth-child(2) strong {
  color: var(--count-min);
}

.metric-card:nth-child(3) strong {
  color: var(--count-max);
}

.chart-panel {
  margin-top: 18px;
  padding: 18px;
}

.chart-panel.compact {
  margin-top: 14px;
}

.chart-scroller {
  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
    linear-gradient(180deg, rgba(8, 20, 31, 0.95), rgba(6, 15, 24, 0.98));
  margin-top: 14px;
}

canvas {
  display: block;
  width: max(100%, 1800px);
}

#probChart {
  height: 520px;
}

#minChart,
#maxChart {
  height: 360px;
}

.tooltip {
  position: absolute;
  top: 16px;
  left: 16px;
  min-width: 196px;
  max-width: 252px;
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

.tooltip strong {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.tooltip span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.foot {
  margin-top: 16px;
  padding: 0 4px;
  flex-wrap: wrap;
}

.foot a {
  color: var(--accent);
  text-decoration: none;
}

.foot a:hover,
.foot a:focus-visible {
  text-decoration: underline;
}

@media (max-width: 980px) {
  .top-days {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sim-grid,
  .sim-controls,
  .sim-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw - 12px, 1200px);
    padding: 12px 0 calc(18px + env(safe-area-inset-bottom, 0px));
  }

  .hero,
  .sim-panel,
  .chart-panel {
    padding: 16px;
    border-radius: 24px;
  }

  .top-days {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  canvas {
    width: max(100%, 1500px);
  }

  #probChart {
    height: 430px;
  }

  #minChart,
  #maxChart {
    height: 320px;
  }
}