:root {
  --canvas-w: 1152px;
  --canvas-h: 2048px;
  --bg: #f3f7fa;
  --letterbox: #000000;
  --surface: #ffffff;
  --surface-soft: #f8fbfd;
  --ink: #102433;
  --muted: #5f7484;
  --faint: #8b9ba7;
  --line: #d9e5ec;
  --line-strong: #c9d8e1;
  --weather: #277da8;
  --air: #168568;
  --noise: #6255a7;
  --good: #168568;
  --excellent: #167e6a;
  --moderate: #c88917;
  --poor: #d06136;
  --hazardous: #b94141;
  --shadow: 0 18px 52px rgba(42, 73, 94, 0.10);
  --radius-xl: 36px;
  --radius-lg: 28px;
  --radius-md: 22px;
  --slide-ms: 12s;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--letterbox);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
}

body { cursor: none; }
body.show-cursor { cursor: default; }
button { font: inherit; }

#stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: var(--letterbox);
}

#canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--canvas-w);
  height: var(--canvas-h);
  transform-origin: center center;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 8%, rgba(39,125,168,0.08), transparent 28%),
    radial-gradient(circle at 94% 90%, rgba(22,133,104,0.07), transparent 28%),
    linear-gradient(180deg, #fbfdfe 0%, var(--bg) 100%);
  display: grid;
  grid-template-rows: 220px 1fr 108px;
}

#canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(16,36,51,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,36,51,0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.4), transparent 76%);
}

/* HEADER */
.masthead {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 38px 48px 32px;
  border-bottom: 1px solid rgba(203,217,226,.9);
  background: rgba(255,255,255,.76);
}

.brand-block { display: flex; align-items: center; gap: 20px; min-width: 0; }
.brand-mark {
  flex: 0 0 78px;
  width: 78px;
  height: 78px;
  border-radius: 23px;
  display: grid;
  place-items: center;
  font-size: 40px;
  font-weight: 850;
  color: #fff;
  background: linear-gradient(145deg, #277da8, #168568);
  box-shadow: 0 12px 28px rgba(39,125,168,.22);
}
.brand-kicker {
  max-width: 640px;
  font-size: 15px;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: .13em;
  color: var(--weather);
  font-weight: 850;
}
.brand-block h1 {
  margin-top: 8px;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -.03em;
}
.brand-sub {
  max-width: 650px;
  margin-top: 7px;
  font-size: 17px;
  line-height: 1.3;
  color: var(--muted);
}

.live-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 13px;
}
.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid #bcded2;
  background: #eef9f5;
  color: var(--good);
  font-size: 15px;
  font-weight: 850;
  letter-spacing: .08em;
}
.live-pill i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 6px rgba(22,133,104,.1);
}
.time-block { text-align: right; min-width: 210px; }
#clock {
  display: block;
  font-size: 32px;
  line-height: 1;
  font-weight: 780;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}
#date-line { margin-top: 7px; font-size: 14px; color: var(--muted); }

/* SLIDE BASE */
#slides { position: relative; min-height: 0; z-index: 2; }
.slide {
  position: absolute;
  inset: 0;
  padding: 36px 48px 28px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(22px);
  transition: opacity .65s ease, transform .65s ease, visibility .65s;
  display: flex;
  flex-direction: column;
}
.slide.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.slide-heading {
  min-height: 116px;
  flex: 0 0 116px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.section-kicker {
  font-size: 15px;
  font-weight: 850;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--faint);
}
.slide-heading h2 {
  margin-top: 7px;
  font-size: 58px;
  line-height: .98;
  letter-spacing: -.045em;
}
.heading-status {
  flex: 0 0 auto;
  min-width: 190px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 11px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 8px 24px rgba(45,78,101,.06);
  font-size: 18px;
  font-weight: 800;
  color: var(--good);
}
.status-dot { width: 12px; height: 12px; border-radius: 50%; background: currentColor; }
.heading-status[data-tone="excellent"] { color: var(--excellent); }
.heading-status[data-tone="good"] { color: var(--good); }
.heading-status[data-tone="moderate"] { color: var(--moderate); }
.heading-status[data-tone="poor"] { color: var(--poor); }
.heading-status[data-tone="hazardous"] { color: var(--hazardous); }

.feature-card,
.metric-card,
.metric-section,
.summary-card {
  background: rgba(255,255,255,.96);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.feature-card { border-radius: var(--radius-xl); }
.metric-card, .summary-card { border-radius: var(--radius-lg); }
.weather-layout, .air-layout, .noise-layout { flex: 1; min-height: 0; }

.feature-label, .summary-label {
  font-size: 17px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--faint);
}
.feature-card h3 {
  margin-top: 22px;
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: -.035em;
}
.feature-meta {
  margin-top: 10px;
  font-size: 21px;
  line-height: 1.35;
  color: var(--muted);
}
.large-chip {
  align-self: flex-start;
  margin-top: 20px;
  padding: 11px 17px;
  border-radius: 999px;
  background: #edf8f4;
  border: 1px solid #c7e5da;
  color: var(--good);
  font-size: 15px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.large-chip[data-tone="moderate"] { color: var(--moderate); background: #fff8e7; border-color: #f0ddb2; }
.large-chip[data-tone="poor"], .large-chip[data-tone="hazardous"] { color: var(--hazardous); background: #fff1f1; border-color: #efcaca; }

/* WEATHER */
.weather-layout {
  display: grid;
  grid-template-rows: 520px 1fr;
  gap: 22px;
}
.weather-feature {
  position: relative;
  overflow: hidden;
  padding: 40px 44px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(145deg, #f6fbff 0%, #fff 56%, #edf7fb 100%);
  border-color: #cfe3ef;
}
.weather-feature::before {
  content: "";
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  right: -80px;
  top: -100px;
  background: rgba(39,125,168,.08);
}
.weather-orb { position: absolute; top: 48px; right: 52px; width: 250px; height: 184px; }
.weather-orb .sun {
  position: absolute;
  width: 124px;
  height: 124px;
  border-radius: 50%;
  left: 70px;
  top: 0;
  background: linear-gradient(145deg,#ffd86a,#ffbd38);
  box-shadow: 0 16px 28px rgba(255,189,56,.22);
}
.weather-orb .cloud {
  position: absolute;
  display: block;
  height: 61px;
  border-radius: 34px;
  background: #fff;
  box-shadow: 0 12px 26px rgba(71,100,120,.12);
}
.weather-orb .cloud::before,
.weather-orb .cloud::after { content:""; position:absolute; border-radius:50%; background:#fff; }
.weather-orb .cloud::before { width: 74px; height: 74px; left: 32px; top: -30px; }
.weather-orb .cloud::after { width: 58px; height: 58px; right: 24px; top: -22px; }
.weather-orb .one { width: 190px; left: 0; top: 88px; }
.weather-orb .two { width: 130px; left: 116px; top: 114px; opacity: .78; transform: scale(.84); }
.feature-value {
  margin-top: 14px;
  font-size: 138px;
  line-height: .88;
  font-weight: 800;
  letter-spacing: -.065em;
  font-variant-numeric: tabular-nums;
}
.feature-value .unit,
.noise-value .unit {
  font-size: .29em;
  font-weight: 720;
  letter-spacing: 0;
  color: var(--muted);
  margin-left: 10px;
}
.metric-grid { display: grid; gap: 18px; min-height: 0; }
.weather-metrics { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(3, 1fr); }
.metric-card {
  position: relative;
  overflow: hidden;
  padding: 27px 27px 24px 34px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.metric-card::before,
.air-card::before,
.summary-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 7px;
  background: var(--good);
}
.metric-card[data-tone="excellent"]::before, .air-card[data-tone="excellent"]::before, .summary-card[data-tone="excellent"]::before { background: var(--excellent); }
.metric-card[data-tone="good"]::before, .air-card[data-tone="good"]::before, .summary-card[data-tone="good"]::before { background: var(--good); }
.metric-card[data-tone="moderate"]::before, .air-card[data-tone="moderate"]::before, .summary-card[data-tone="moderate"]::before { background: var(--moderate); }
.metric-card[data-tone="poor"]::before, .air-card[data-tone="poor"]::before, .summary-card[data-tone="poor"]::before { background: var(--poor); }
.metric-card[data-tone="hazardous"]::before, .air-card[data-tone="hazardous"]::before, .summary-card[data-tone="hazardous"]::before { background: var(--hazardous); }
.metric-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.metric-top span { font-size: 19px; font-weight: 780; color: var(--muted); }
.metric-top b {
  font-size: 12px;
  letter-spacing: .1em;
  color: #94a4b0;
  padding: 7px 9px;
  background: #f2f6f8;
  border-radius: 9px;
}
.metric-value {
  margin-top: auto;
  padding-top: 18px;
  font-size: 72px;
  line-height: .95;
  font-weight: 780;
  letter-spacing: -.055em;
  font-variant-numeric: tabular-nums;
}
.metric-value.compact { font-size: 56px; }
.metric-value .unit { font-size: .34em; margin-left: 7px; color: var(--muted); font-weight: 720; letter-spacing: 0; }
.metric-meta { margin-top: 13px; min-height: 48px; font-size: 17px; line-height: 1.3; color: var(--muted); }
.wind-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-top: auto; }
.wind-row .metric-value { margin-top: 0; padding-top: 18px; }
.wind-direction {
  position: relative;
  flex: 0 0 86px;
  height: 86px;
  border-radius: 50%;
  border: 2px solid var(--line-strong);
  background: #f8fbfd;
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--weather);
}
.wind-direction::before { content:"N"; position:absolute; top:5px; left:50%; transform:translateX(-50%); font-size:10px; color:var(--faint); }
.wind-direction i { position:absolute; width:4px; height:28px; left:50%; top:50%; margin:-28px 0 0 -2px; border-radius:3px; background:var(--weather); transform-origin:50% 100%; transform:rotate(225deg); }
.wind-direction span { transform: translateY(10px); }

/* AIR */
.air-layout {
  display: grid;
  grid-template-rows: 500px 1fr;
  gap: 22px;
}
.air-feature {
  padding: 38px 42px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto 1fr;
  column-gap: 36px;
  background: linear-gradient(150deg,#f4fcf9,#fff 62%,#f0faf6);
  border-color: #cde8df;
}
.air-feature .feature-label,
.air-feature .aqi-value,
.air-feature h3,
.air-feature > .feature-meta { grid-column: 1; }
.aqi-value {
  margin-top: 18px;
  font-size: 132px;
  line-height: .9;
  font-weight: 800;
  letter-spacing: -.065em;
  color: var(--air);
}
.aqi-value small { margin-left: 12px; font-size: 22px; font-weight: 850; letter-spacing: .1em; color: var(--muted); }
.air-feature h3 { margin-top: 14px; }
.air-feature > .feature-meta { margin-top: 8px; }
.aqi-scale { grid-column: 2; grid-row: 1 / span 2; align-self: center; margin-top: 0; }
.aqi-track { position: relative; height: 16px; border-radius: 999px; background: linear-gradient(90deg,#37a77e 0 20%,#85b94c 20% 40%,#e1b341 40% 60%,#e67b3f 60% 80%,#c94747 80% 100%); }
.aqi-track i { position:absolute; top:-8px; left:16%; width:7px; height:32px; border-radius:6px; background:#102232; box-shadow:0 0 0 4px #fff; transition:left .6s ease; }
.aqi-labels { display:grid; grid-template-columns:repeat(5,1fr); margin-top:12px; gap:4px; font-size:11px; font-weight:850; text-align:center; color:var(--faint); }
.air-mini-row { grid-column: 2; grid-row: 3; align-self: start; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.air-mini-row div { padding: 18px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.78); }
.air-mini-row span { display:block; font-size:14px; font-weight:760; color:var(--muted); }
.air-mini-row strong { display:block; margin-top:6px; font-size:30px; }
.air-mini-row i { font-style:normal; }
.feature-alert {
  grid-column: 1;
  grid-row: 3;
  align-self: end;
  margin-top: 20px;
  padding: 17px 19px;
  border-radius: 18px;
  border: 1px solid #e6d8b6;
  background: #fff9eb;
}
.feature-alert > span { display:block; font-size:13px; font-weight:850; text-transform:uppercase; letter-spacing:.13em; color:var(--faint); }
.feature-alert strong { display:block; margin-top:5px; font-size:24px; color:var(--moderate); }
.feature-alert p { margin-top:5px; font-size:15px; line-height:1.3; color:var(--muted); }
.feature-alert[data-tone="excellent"], .feature-alert[data-tone="good"] { border-color:#cde7dd; background:#f1faf7; }
.feature-alert[data-tone="excellent"] strong, .feature-alert[data-tone="good"] strong { color:var(--good); }
.air-metrics { min-height:0; display:grid; grid-template-rows: .92fr 1.08fr; gap:18px; }
.metric-section { border-radius: var(--radius-lg); padding: 25px; min-height: 0; display: flex; flex-direction: column; }
.metric-section-title { display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.metric-section-title span { font-size:20px; font-weight:850; letter-spacing:.01em; }
.metric-section-title small { font-size:13px; font-weight:760; text-transform:uppercase; letter-spacing:.1em; color:var(--faint); }
.pm-row, .gas-row { flex:1; min-height:0; display:grid; gap:14px; }
.pm-row { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
.gas-row { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(3, 1fr); }
.gas-row .air-card:last-child { grid-column: 1 / span 2; }
.air-card {
  position: relative;
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface-soft);
  padding: 21px 20px 18px 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto 1fr auto;
  align-items: end;
}
.air-card > span { grid-column:1; grid-row:1; align-self:start; font-size:18px; font-weight:850; color:var(--muted); }
.air-card > strong { grid-column:1; grid-row:2; align-self:end; padding-top:10px; font-size:54px; line-height:1; letter-spacing:-.055em; font-variant-numeric:tabular-nums; }
.air-card > em { grid-column:2; grid-row:2; align-self:end; padding-bottom:5px; font-size:13px; font-weight:850; font-style:normal; text-transform:uppercase; letter-spacing:.08em; color:var(--faint); }
.air-card > small { grid-column:1 / span 2; grid-row:3; margin-top:8px; font-size:14px; line-height:1.2; color:var(--muted); }

/* NOISE */
.noise-layout {
  display: grid;
  grid-template-rows: 650px 1fr;
  gap: 22px;
}
.noise-feature {
  padding: 46px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(145deg,#f8f7ff,#fff 58%,#f3f0ff);
  border-color: #dcd7f2;
}
.noise-value {
  margin-top: 20px;
  font-size: 190px;
  line-height: .88;
  font-weight: 800;
  letter-spacing: -.07em;
  color: var(--noise);
  font-variant-numeric: tabular-nums;
}
.noise-meter { margin-top: 48px; }
.noise-legend { display:grid; grid-template-columns:41.66% 25% 33.34%; font-size:15px; font-weight:850; text-transform:uppercase; letter-spacing:.1em; color:var(--muted); margin-bottom:13px; }
.noise-legend span:nth-child(2) { color:var(--moderate); }
.noise-legend span:nth-child(3) { color:var(--hazardous); }
.noise-track { position:relative; height:24px; border-radius:999px; background:linear-gradient(90deg,#37a77e 0 41.66%,#e1b341 41.66% 66.66%,#d5564f 66.66% 100%); }
.noise-track i { position:absolute; top:-9px; left:30%; width:8px; height:42px; border-radius:6px; background:#102232; box-shadow:0 0 0 5px #fff; transition:left .6s ease; }
.noise-ticks { display:flex; justify-content:space-between; margin-top:11px; font-size:15px; font-weight:720; color:var(--faint); }
.noise-summary { min-height:0; display:grid; grid-template-columns:1fr 1fr; grid-template-rows: 1fr 1fr; gap:18px; }
.noise-summary .summary-card:first-child { grid-column:1 / span 2; }
.summary-card {
  position: relative;
  overflow: hidden;
  padding: 30px 30px 27px 38px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.summary-value { margin-top:16px; font-size:62px; line-height:1; letter-spacing:-.05em; font-weight:780; }
.summary-value.compact { font-size:48px; }
.summary-meta { margin-top:auto; padding-top:14px; font-size:17px; line-height:1.35; color:var(--muted); }
.category-row { margin-top:auto; display:grid; grid-template-columns:repeat(3,1fr); gap:13px; }
.category { border:1px solid var(--line); background:#f8fbfd; border-radius:17px; padding:17px 10px; text-align:center; opacity:.52; color:var(--muted); }
.category i { display:block; width:12px; height:12px; border-radius:50%; margin:0 auto 9px; background:currentColor; }
.category strong { display:block; font-size:18px; }
.category small { display:block; margin-top:4px; font-size:12px; }
.category[data-tier="low"] { color:var(--good); }
.category[data-tier="moderate"] { color:var(--moderate); }
.category[data-tier="high"] { color:var(--hazardous); }
.category.is-on { opacity:1; border-color:currentColor; background:#fff; box-shadow:0 8px 20px rgba(45,78,101,.07); }

/* FOOTER / SLIDESHOW */
.dock {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 10px 18px;
  padding: 12px 48px 20px;
}
.dots { display:flex; gap:10px; }
.dot {
  appearance:none;
  border:1px solid var(--line);
  background:rgba(255,255,255,.8);
  color:var(--muted);
  border-radius:999px;
  padding:10px 18px;
  font-size:15px;
  font-weight:780;
  cursor:pointer;
}
.dot.is-on { color:#fff; background:var(--ink); border-color:var(--ink); }
.progress { grid-column:1 / span 2; height:7px; border-radius:999px; background:#dfe8ed; overflow:hidden; }
.progress i { display:block; height:100%; width:0; border-radius:inherit; background:linear-gradient(90deg,var(--weather),var(--air),var(--noise)); }
.progress i.running { animation:fill var(--slide-ms) linear forwards; }
.hint { font-size:14px; font-weight:850; text-transform:uppercase; letter-spacing:.11em; color:var(--faint); white-space:nowrap; }

.slide.is-active .feature-card,
.slide.is-active .metric-card,
.slide.is-active .metric-section,
.slide.is-active .summary-card {
  animation: rise .6s ease both;
  animation-delay: calc(var(--i, 0) * 70ms);
}

@keyframes rise { from { opacity:0; transform:translateY(16px); } to { opacity:1; transform:none; } }
@keyframes fill { from { width:0; } to { width:100%; } }
.is-paused .progress i { animation-play-state:paused; }

@media (prefers-reduced-motion: reduce) {
  .slide,
  .slide.is-active .feature-card,
  .slide.is-active .metric-card,
  .slide.is-active .metric-section,
  .slide.is-active .summary-card { transition:none; animation:none; }
}