:root {
  --bg: #e8f3fb;
  --bg-deep: #d5eaf8;
  --card: #ffffff;
  --ink: #1a2b3c;
  --muted: #6b8499;
  --sky: #5eb8ff;
  --sky-deep: #2f8fd6;
  --sky-soft: #a8d8ff;
  --amber: #f0a35e;
  --danger: #ff6b6b;
  --good: #3ecf8e;
  --shadow: 0 4px 18px rgba(47, 110, 160, 0.08);
  --radius: 16px;
  --font: "DM Sans", "Segoe UI", sans-serif;
  --pad: clamp(1rem, 3.5vw, 2rem);
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font);
  background:
    radial-gradient(80% 50% at 10% -5%, rgba(94, 184, 255, 0.35), transparent 50%),
    radial-gradient(60% 40% at 95% 5%, rgba(168, 216, 255, 0.45), transparent 45%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.88em;
  color: var(--sky-deep);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem var(--pad);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(47, 143, 214, 0.1);
}

.topbar-brand {
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--sky-deep);
}

.topbar-nav {
  display: flex;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.topbar-nav a:hover,
.topbar-nav a.is-active {
  color: var(--ink);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.4rem var(--pad) 2.5rem;
}

.page-head {
  margin-bottom: 1.25rem;
}

.breadcrumb {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.page-head h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.45rem, 3.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-sub {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.demo-badge {
  display: inline-block;
  margin: 0.55rem 0 0;
  padding: 0.35rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5a4210;
  background: rgba(240, 163, 94, 0.28);
  border: 1px solid rgba(240, 163, 94, 0.45);
  border-radius: 999px;
}

.dash {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.metric {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.2rem 1.25rem;
  display: flex;
  flex-direction: column;
  min-height: 168px;
  border: 1px solid rgba(94, 184, 255, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(47, 110, 160, 0.12);
}

.metric-icon {
  width: 42px;
  height: 42px;
  color: var(--sky-deep);
  margin-bottom: 0.65rem;
}

.metric-icon svg {
  width: 100%;
  height: 100%;
}

.metric[data-metric="temp"] .metric-icon {
  color: #e07a3a;
}

.metric[data-metric="humidity"] .metric-icon {
  color: #3a9ee8;
}

.metric[data-metric="status"].status--baik .metric-icon,
.metric[data-metric="status"].status--baik .metric-value-text {
  color: var(--good);
}

.metric[data-metric="status"].status--waspada .metric-icon,
.metric[data-metric="status"].status--waspada .metric-value-text {
  color: var(--amber);
}

.metric[data-metric="status"].status--buruk .metric-icon,
.metric[data-metric="status"].status--buruk .metric-value-text {
  color: var(--danger);
}

.metric-label {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
}

.metric-value {
  margin: 0.55rem 0 0.25rem;
  font-size: clamp(1.85rem, 4.5vw, 2.45rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--ink);
}

.metric-value-text {
  font-size: clamp(1.55rem, 4vw, 2.1rem);
}

.metric-value-sm {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
}

.metric-unit {
  font-size: 0.42em;
  font-weight: 500;
  color: var(--muted);
  margin-left: 0.15em;
}

.metric-note {
  margin: auto 0 0;
  padding-top: 0.55rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.thr-baik {
  color: var(--good);
}

.thr-waspada {
  color: var(--amber);
}

.thr-buruk {
  color: var(--danger);
}

.chart-block {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.range-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.range-btn {
  appearance: none;
  border: 1px solid rgba(47, 143, 214, 0.25);
  background: #fff;
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.78rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.range-btn:hover {
  color: var(--ink);
  border-color: var(--sky);
}

.range-btn.is-active {
  background: var(--sky-deep);
  border-color: var(--sky-deep);
  color: #fff;
}

.chart-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1rem;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(94, 184, 255, 0.18);
  padding: 1rem 1.1rem 1.15rem;
}

.card-title {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.chart-wrap {
  position: relative;
  height: min(220px, 48vw);
}

.rules {
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(47, 143, 214, 0.15);
}

.kicker {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sky-deep);
}

.rules h2 {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
}

.lede {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  max-width: 52ch;
}

.code {
  overflow: auto;
  margin: 1rem 0;
  padding: 1rem;
  background: #fff;
  border: 1px solid rgba(47, 143, 214, 0.12);
  border-radius: 10px;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  color: #345;
  box-shadow: var(--shadow);
}

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--pad) 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  border-top: 1px solid rgba(47, 143, 214, 0.12);
}

@media (max-width: 960px) {
  .metric-grid {
    grid-template-columns: 1fr 1fr;
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .topbar-nav a:not(.is-active):not([href="#aturan"]) {
    display: none;
  }
}