:root {
  --bg: #dce8f0;
  --bg-deep: #c5d6e4;
  --card: #f4f8fb;
  --ink: #132029;
  --muted: #5a7080;
  --sky: #2f6f9a;
  --sky-deep: #1e4f72;
  --breeze: #4a9bb8;
  --amber: #c9893a;
  --danger: #c45a4a;
  --shadow: 0 6px 24px rgba(30, 55, 75, 0.08);
  --radius: 16px;
  --font: "Space Grotesk", "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(70% 45% at 10% -5%, rgba(74, 155, 184, 0.35), transparent 55%),
    radial-gradient(50% 40% at 95% 0%, rgba(47, 111, 154, 0.18), transparent 50%),
    linear-gradient(175deg, 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(244, 248, 251, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(47, 111, 154, 0.12);
}

.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(1.5rem, 3.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.demo-badge {
  display: inline-block;
  margin: 0.55rem 0 0;
  padding: 0.25rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--sky-deep);
  background: rgba(74, 155, 184, 0.2);
  border-radius: 999px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: minmax(200px, 0.75fr) minmax(200px, 0.75fr) minmax(0, 1.35fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.tile-weather,
.compass-card,
.metric,
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(47, 111, 154, 0.1);
}

.tile-weather {
  padding: 1.15rem 1.2rem 1.35rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: background 0.6s ease, border-color 0.6s ease;
}

.tile-weather::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.7;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

.tile-weather.weather--clear::before {
  background: radial-gradient(circle at 30% 20%, rgba(201, 137, 58, 0.28), transparent 55%);
}

.tile-weather.weather--cloud::before {
  background: radial-gradient(circle at 50% 0%, rgba(90, 112, 128, 0.18), transparent 60%);
}

.tile-weather.weather--rain::before {
  background: radial-gradient(circle at 50% 0%, rgba(74, 155, 184, 0.28), transparent 55%);
}

.tile-weather.weather--storm::before {
  background: radial-gradient(circle at 40% 10%, rgba(201, 137, 58, 0.22), transparent 50%);
}

.tile-weather.weather--fog::before {
  background: radial-gradient(circle at 50% 30%, rgba(90, 112, 128, 0.22), transparent 65%);
}

.tile-weather > * {
  position: relative;
  z-index: 1;
}

.weather-visual {
  width: min(120px, 38vw);
  height: min(120px, 38vw);
  display: grid;
  place-items: center;
  margin: 0.2rem 0 0.35rem;
}

.weather-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 6px 16px rgba(30, 55, 75, 0.18));
  animation: weather-float 5s ease-in-out infinite;
}

.weather--clear .weather-visual img {
  animation: weather-sun 6s ease-in-out infinite;
}

.weather--rain .weather-visual img {
  animation: weather-float 3.5s ease-in-out infinite;
}

@keyframes weather-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes weather-sun {
  0%,
  100% {
    transform: scale(1);
    filter: drop-shadow(0 6px 16px rgba(201, 137, 58, 0.35));
  }
  50% {
    transform: scale(1.04);
    filter: drop-shadow(0 8px 22px rgba(201, 137, 58, 0.5));
  }
}

.weather-skeleton {
  width: 72%;
  height: 72%;
  border-radius: 50%;
  background: linear-gradient(
    110deg,
    rgba(90, 112, 128, 0.1) 30%,
    rgba(47, 111, 154, 0.16) 50%,
    rgba(90, 112, 128, 0.1) 70%
  );
  background-size: 200% 100%;
  animation: weather-shimmer 1.4s ease-in-out infinite;
}

.weather-skeleton.is-hidden {
  display: none;
}

@keyframes weather-shimmer {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: -100% 0;
  }
}

.weather-outdoor {
  margin: 0.1rem 0 0.25rem;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--sky-deep);
}

.weather-outdoor-unit {
  font-size: 0.75em;
  color: var(--breeze);
  margin-left: 0.1em;
}

.weather-outdoor-note {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.weather-desc {
  margin: 0.25rem 0 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

#weather-place {
  color: var(--muted);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}

.compass-card {
  padding: 1.15rem 1.2rem 1.35rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-label {
  margin: 0 0 0.55rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  align-self: flex-start;
}

.compass {
  width: min(200px, 70%);
  aspect-ratio: 1;
  margin: 0.35rem 0 0.75rem;
}

.compass-face {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #eaf3f8 0%, #d5e6f0 70%, #c2d6e4 100%);
  border: 2px solid rgba(47, 111, 154, 0.25);
  box-shadow: inset 0 0 0 10px rgba(255, 255, 255, 0.45);
}

.compass-face span {
  position: absolute;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--sky-deep);
}

.c-n {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
}
.c-e {
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
}
.c-s {
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
}
.c-w {
  left: 10%;
  top: 50%;
  transform: translateY(-50%);
}

.compass-needle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 42%;
  margin-left: -3px;
  margin-top: -42%;
  transform-origin: 50% 100%;
  transform: rotate(0deg);
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  background: linear-gradient(180deg, var(--amber) 0%, var(--amber) 48%, var(--sky) 52%, var(--sky) 100%);
  border-radius: 3px;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.compass-readout {
  margin: 0;
  text-align: center;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.compass-readout .deg {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.metric {
  padding: 1rem 1.1rem;
}

.metric-value {
  margin: 0 0 0.25rem;
  font-size: clamp(1.55rem, 3vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--sky-deep);
}

.metric-unit {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  margin-left: 0.2rem;
}

.metric-note {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

#speed-tile[data-status="sepoi"] .metric-value {
  color: var(--breeze);
}
#speed-tile[data-status="sedang"] .metric-value {
  color: var(--sky);
}
#speed-tile[data-status="kencang"] .metric-value {
  color: var(--amber);
}

.range-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.range-btn {
  appearance: none;
  border: 1px solid rgba(47, 111, 154, 0.22);
  background: rgba(244, 248, 251, 0.75);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
}

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

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

.card {
  padding: 1.1rem 1.15rem;
}

.card-title {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.chart-wrap {
  height: 200px;
}

.rules {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(47, 111, 154, 0.14);
}

.kicker {
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.rules h2 {
  margin: 0 0 0.4rem;
  font-size: 1.3rem;
}

.lede {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.code {
  margin: 0;
  padding: 1rem 1.1rem;
  background: #132029;
  color: #d5e4ef;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 0.78rem;
  line-height: 1.45;
}

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad) 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .metric-grid {
    grid-column: 1 / -1;
  }
}

@media (max-width: 800px) {
  .hero-metrics,
  .chart-grid {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-column: auto;
  }
}