:root {
    color-scheme: light;
    --ink: #102532;
    --muted: #637580;
    --line: #dce5e9;
    --paper: #f5f8f9;
    --white: #ffffff;
    --navy: #0b2233;
    --navy-soft: #12364d;
    --blue: #49b7d7;
    --blue-light: #dff4f8;
    --sun: #f6c85f;
    --rain: #80aee8;
    --danger: #bb4b55;
    --success: #3b9b7a;
    --radius: 22px;
    --shadow: 0 18px 45px rgba(22, 53, 69, 0.09);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.5; }
a { color: inherit; }
button, code { font: inherit; }

.hero {
    position: relative;
    overflow: hidden;
    color: var(--white);
    background:
        radial-gradient(circle at 80% 5%, rgba(73, 183, 215, .28), transparent 31%),
        linear-gradient(135deg, #071a28 0%, var(--navy) 55%, #113c55 100%);
}
.hero::after {
    content: "";
    position: absolute;
    inset: auto -8% -52% 47%;
    height: 440px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 50%;
    transform: rotate(-8deg);
    pointer-events: none;
}
.topbar, .hero-content, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 24px 0; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: white; font-weight: 750; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 35px; height: 35px; border-radius: 11px; background: var(--blue); color: var(--navy); font-weight: 900; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: rgba(255,255,255,.72); font-size: .92rem; text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: white; }
.hero-content { position: relative; z-index: 1; padding: 76px 0 88px; }
.eyebrow, .section-kicker { font-size: .76rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: #a9dce9; margin-bottom: 34px; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: #70e0b2; box-shadow: 0 0 0 5px rgba(112,224,178,.12); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(460px, .85fr); gap: 70px; align-items: end; }
.section-kicker { color: var(--blue); margin: 0 0 10px; }
.temperature-line { display: flex; align-items: flex-start; line-height: .82; }
.hero-temperature { font-size: clamp(6.6rem, 13vw, 10.8rem); font-weight: 250; letter-spacing: -.09em; }
.hero-unit { margin: 13px 0 0 18px; color: #9ed6e6; font-size: clamp(1.7rem, 4vw, 2.8rem); font-weight: 300; }
.weather-summary { margin: 30px 0 25px; color: rgba(255,255,255,.76); font-size: 1.08rem; }
.freshness { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.65); font-size: .86rem; }
.freshness-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.freshness.fresh .freshness-dot { background: #70e0b2; }
.freshness.stale .freshness-dot { background: var(--sun); }
.hero-details { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.detail-card { min-height: 122px; display: flex; align-items: center; gap: 17px; padding: 23px; border: 1px solid rgba(255,255,255,.1); border-radius: 18px; background: rgba(255,255,255,.065); backdrop-filter: blur(12px); }
.metric-icon { display: grid; place-items: center; flex: 0 0 auto; width: 42px; height: 42px; border-radius: 14px; background: rgba(73,183,215,.16); color: #9edcea; font-size: 1.35rem; }
.metric-label { display: block; margin-bottom: 7px; color: rgba(255,255,255,.55); font-size: .78rem; }
.detail-card strong { font-size: 1.42rem; font-weight: 580; }
.detail-card small, .metric-card small { color: currentColor; font-size: .62em; font-weight: 450; }
.stale-banner { position: relative; z-index: 2; padding: 13px 20px; background: #f5d88d; color: #4b3b16; text-align: center; font-size: .9rem; }

main { padding: 88px 0 28px; }
.section { margin-bottom: 100px; scroll-margin-top: 30px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 34px; }
.section-heading h2 { margin: 0; max-width: 700px; font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.05; letter-spacing: -.045em; }
.section-heading > p { max-width: 440px; margin: 0 0 4px; color: var(--muted); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.metric-card { position: relative; overflow: hidden; min-height: 260px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 9px 28px rgba(21,53,70,.045); }
.metric-card::after { content: ""; position: absolute; right: -42px; bottom: -60px; width: 150px; height: 150px; border-radius: 50%; opacity: .18; }
.wind-card::after { background: var(--blue); }
.rain-card::after { background: var(--rain); }
.light-card::after { background: var(--sun); }
.comfort-card::after { background: #8cd1b6; }
.metric-card-head { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: .88rem; }
.card-symbol { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--paper); color: var(--ink); font-size: 1.15rem; }
.metric-card > strong { display: block; margin: 37px 0 33px; font-size: clamp(2.4rem, 4vw, 3.6rem); line-height: 1; letter-spacing: -.055em; font-weight: 480; }
.metric-card dl { margin: 0; }
.metric-card dl > div { display: flex; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px solid var(--line); font-size: .84rem; }
.metric-card dt { color: var(--muted); }
.metric-card dd { margin: 0; font-weight: 650; }
.card-note { margin-top: 35px; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: .84rem; }

.history-section { padding: 54px; border-radius: 30px; background: var(--navy); color: white; box-shadow: var(--shadow); }
.history-section .section-heading { align-items: center; }
.history-section .section-kicker { color: #87d3e8; }
.history-section h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.chart-tabs { display: flex; gap: 6px; padding: 5px; border-radius: 14px; background: rgba(255,255,255,.07); }
.chart-tab { padding: 9px 14px; border: 0; border-radius: 10px; background: transparent; color: rgba(255,255,255,.65); cursor: pointer; }
.chart-tab.active { background: var(--white); color: var(--navy); }
.chart-tab:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.chart-card { padding: 28px; border: 1px solid rgba(255,255,255,.09); border-radius: 20px; background: rgba(255,255,255,.045); }
.chart-meta { display: flex; align-items: end; justify-content: space-between; margin-bottom: 25px; color: rgba(255,255,255,.55); font-size: .78rem; }
.chart-meta div { display: flex; align-items: baseline; gap: 15px; }
.chart-meta strong { color: white; font-size: 1.6rem; font-weight: 550; }
.chart-wrap { position: relative; height: 330px; }
#history-chart { display: block; width: 100%; height: 100%; }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: rgba(255,255,255,.5); }

.api-section { padding: 58px; border: 1px solid var(--line); border-radius: 30px; background: var(--white); }
.api-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 13px; }
.api-card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 17px; background: var(--paper); }
.api-primary { background: var(--blue-light); border-color: #bde6ef; }
.api-method { display: inline-block; margin-bottom: 26px; padding: 5px 8px; border-radius: 7px; background: var(--navy); color: white; font-size: .66rem; font-weight: 800; letter-spacing: .09em; }
.api-card h3 { margin: 0 0 13px; font-size: 1rem; }
.api-card code { display: block; overflow-wrap: anywhere; color: #366579; font-size: .78rem; }
.api-card a { display: inline-block; margin-top: 22px; color: #16647b; font-size: .8rem; font-weight: 700; }
.api-note { margin: 22px 0 0; color: var(--muted); font-size: .82rem; }

footer { display: flex; justify-content: space-between; gap: 30px; padding: 0 0 50px; color: var(--muted); font-size: .82rem; }
footer div { display: flex; flex-direction: column; gap: 4px; }
footer strong { color: var(--ink); }
footer a { align-self: end; font-weight: 700; text-decoration: none; }

@media (max-width: 980px) {
    .hero-grid { grid-template-columns: 1fr; gap: 50px; }
    .hero-details { max-width: 700px; }
    .metric-grid { grid-template-columns: repeat(2, 1fr); }
    .api-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
    .topbar, .hero-content, main, footer { width: min(100% - 28px, 1180px); }
    .topbar { padding-top: 18px; }
    .nav-links { gap: 14px; font-size: .85rem; }
    .nav-links a:first-child { display: none; }
    .hero-content { padding: 54px 0 60px; }
    .hero-details { grid-template-columns: 1fr 1fr; }
    .detail-card { min-height: 106px; padding: 17px; }
    .metric-icon { display: none; }
    .detail-card strong { font-size: 1.17rem; }
    main { padding-top: 62px; }
    .section { margin-bottom: 70px; }
    .section-heading { display: block; }
    .section-heading > p { margin-top: 18px; }
    .metric-grid { grid-template-columns: 1fr; }
    .metric-card { min-height: 220px; }
    .history-section, .api-section { margin-inline: -14px; padding: 30px 18px; border-radius: 22px; }
    .history-section .section-heading { display: block; }
    .chart-tabs { margin-top: 23px; overflow-x: auto; }
    .chart-tab { flex: 1 0 auto; }
    .chart-card { padding: 18px 12px; }
    .chart-wrap { height: 260px; }
    .api-grid { grid-template-columns: 1fr; }
    footer { flex-direction: column; }
    footer a { align-self: start; }
}

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