:root{
  --ink:#0f1b2d;
  --white:#fff;
  --glass:rgba(255,255,255,.14);
  --glass-bd:rgba(255,255,255,.22);
  --glass-strong:rgba(255,255,255,.92);
  --text:#f4f8ff;
  --text-dim:rgba(244,248,255,.72);
  --accent:#ffd479;
  --radius:22px;
  --shadow:0 10px 40px rgba(8,18,40,.28);
  font-family:'Inter',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{min-height:100%}
body{color:var(--text);overflow-x:hidden;background:#1b3a6b}

/* ============ CIEL VIVANT ============ */
.sky{position:fixed;inset:0;z-index:-1;overflow:hidden;transition:background 1.5s ease}
.sky-gradient{position:absolute;inset:0;transition:opacity 1.5s ease}

/* Ambiances selon l'heure / météo (pilotées par data-sky) */
body[data-sky="day"]   .sky-gradient{background:linear-gradient(180deg,#1b5dab 0%,#4a90d9 55%,#9ec9f0 100%)}
body[data-sky="dawn"]  .sky-gradient{background:linear-gradient(180deg,#2c3e73 0%,#a86b8e 60%,#f0b07a 100%)}
body[data-sky="dusk"]  .sky-gradient{background:linear-gradient(180deg,#1a2350 0%,#6a4a8f 55%,#e0795f 100%)}
body[data-sky="night"] .sky-gradient{background:linear-gradient(180deg,#070d1f 0%,#0f1d3d 60%,#1a2c52 100%)}
body[data-sky="rain"]  .sky-gradient{background:linear-gradient(180deg,#2b3440 0%,#48586b 60%,#6b7a8c 100%)}
body[data-sky="cloud"] .sky-gradient{background:linear-gradient(180deg,#42597a 0%,#6982a3 60%,#9aabc0 100%)}

/* Soleil / lune */
.celestial{position:absolute;top:12%;right:18%;width:120px;height:120px;border-radius:50%;
  filter:blur(2px);transition:all 1.5s ease;opacity:0}
body[data-sky="day"]  .celestial{opacity:1;background:radial-gradient(circle,#fff8e0,#ffe08a);box-shadow:0 0 80px 30px rgba(255,224,138,.55)}
body[data-sky="dawn"] .celestial{opacity:1;top:30%;background:radial-gradient(circle,#ffe6c0,#ff9e6b);box-shadow:0 0 70px 24px rgba(255,158,107,.5)}
body[data-sky="dusk"] .celestial{opacity:1;top:34%;background:radial-gradient(circle,#ffd9b0,#ff7e54);box-shadow:0 0 70px 24px rgba(255,126,84,.5)}
body[data-sky="night"] .celestial{opacity:1;background:radial-gradient(circle,#f4f6ff,#cdd6f0);box-shadow:0 0 50px 14px rgba(205,214,240,.4);width:84px;height:84px}

/* Étoiles (nuit) */
.stars{position:absolute;inset:0;opacity:0;transition:opacity 1.5s ease}
body[data-sky="night"] .stars{opacity:1}
.star{position:absolute;width:2px;height:2px;background:#fff;border-radius:50%;animation:tw 3s infinite ease-in-out}
@keyframes tw{0%,100%{opacity:.25}50%{opacity:.95}}

/* Nuages */
.clouds{position:absolute;inset:0;opacity:0;transition:opacity 1.5s ease;display:none}
body[data-sky="cloud"] .clouds,body[data-sky="rain"] .clouds{opacity:1;display:block}
.cloud{position:absolute;top:4%;background:rgba(255,255,255,.4);border-radius:100px;filter:blur(14px);animation:drift linear infinite}
@keyframes drift{from{transform:translateX(-40vw)}to{transform:translateX(140vw)}}

/* Pluie */
.rain{position:absolute;inset:0;opacity:0;transition:opacity 1s ease;pointer-events:none}
body[data-sky="rain"] .rain{opacity:1}
.drop{position:absolute;top:-10%;width:1.5px;height:42px;background:linear-gradient(transparent,rgba(255,255,255,.5));animation:fall linear infinite}
@keyframes fall{to{transform:translateY(120vh)}}

@media(prefers-reduced-motion:reduce){
  .star,.cloud,.drop{animation:none!important}
}

/* ============ APP ============ */
.app{max-width:680px;margin:0 auto;padding:max(16px,env(safe-area-inset-top)) 16px 40px}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 4px 8px}
.brand{display:flex;align-items:center;gap:12px}
.brand-dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--accent)}
.brand-name{font-weight:700;font-size:17px;letter-spacing:.2px}
.brand-sub{font-size:12px;color:var(--text-dim)}
.install-btn{background:var(--glass);border:1px solid var(--glass-bd);color:var(--text);
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;backdrop-filter:blur(8px)}
.install-btn:active{transform:scale(.96)}

/* HERO */
.hero{text-align:center;padding:30px 0 26px}
.hero-temp{font-family:'Fraunces',serif;font-weight:900;font-size:clamp(96px,34vw,168px);
  line-height:.9;letter-spacing:-3px;text-shadow:0 6px 40px rgba(0,0,0,.25)}
.hero-temp .deg{font-weight:400;opacity:.8}
.hero-state{font-size:20px;font-weight:600;margin-top:6px}
.hero-meta{margin-top:10px;color:var(--text-dim);font-size:14px;display:flex;gap:10px;justify-content:center;align-items:center}
.dot-sep{opacity:.5}

/* TILES */
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:8px}
.tile{background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--radius);
  padding:16px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.tile-label{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);font-weight:600}
.tile-big{font-family:'Fraunces',serif;font-weight:600;font-size:34px;margin-top:8px}
.tile-big small,.tile-value small{font-size:15px;font-weight:400;opacity:.7;font-family:'Inter'}
.tile-sub{font-size:12.5px;color:var(--text-dim);margin-top:4px}
.tile-value{font-family:'Fraunces',serif;font-size:26px;font-weight:600;margin-top:6px}

.gauge{height:6px;background:rgba(255,255,255,.18);border-radius:999px;margin-top:10px;overflow:hidden}
.gauge-fill{height:100%;background:var(--accent);border-radius:999px;width:0;transition:width 1s ease}

/* Rose des vents — signature */
.tile-wind{grid-row:span 2;display:flex;flex-direction:column;align-items:center}
.windrose{position:relative;width:140px;height:140px;margin:10px 0}
.windrose-ring{position:absolute;inset:0;border-radius:50%;border:2px solid rgba(255,255,255,.25);
  background:radial-gradient(circle,rgba(255,255,255,.08),transparent 70%)}
.wr-card{position:absolute;font-size:12px;font-weight:700;color:var(--text-dim)}
.wr-n{top:6px;left:50%;transform:translateX(-50%)}
.wr-s{bottom:6px;left:50%;transform:translateX(-50%)}
.wr-e{right:8px;top:50%;transform:translateY(-50%)}
.wr-o{left:8px;top:50%;transform:translateY(-50%)}
.windrose-needle{position:absolute;top:50%;left:50%;width:4px;height:54px;
  background:linear-gradient(180deg,var(--accent) 0%,var(--accent) 50%,rgba(255,255,255,.3) 50%,rgba(255,255,255,.3) 100%);
  border-radius:4px;transform-origin:50% 50%;transform:translate(-50%,-50%) rotate(0deg);transition:transform 1.2s cubic-bezier(.34,1.4,.5,1)}
.windrose-center{position:absolute;top:50%;left:50%;width:14px;height:14px;border-radius:50%;
  background:var(--white);transform:translate(-50%,-50%);box-shadow:0 0 12px rgba(255,255,255,.6)}

/* Alertes */
.alerts{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.alert{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:16px;
  font-size:14px;font-weight:600;backdrop-filter:blur(10px)}
.alert-cold{background:rgba(120,180,255,.22);border:1px solid rgba(120,180,255,.4)}
.alert-heat{background:rgba(255,140,80,.22);border:1px solid rgba(255,140,80,.45)}
.alert-wind{background:rgba(180,200,220,.2);border:1px solid rgba(180,200,220,.4)}
.alert-rain{background:rgba(90,150,200,.22);border:1px solid rgba(90,150,200,.4)}

/* Cartes */
.card{background:var(--glass-strong);color:var(--ink);border-radius:var(--radius);
  padding:18px;margin-top:16px;box-shadow:var(--shadow)}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.card-head h2{font-family:'Fraunces',serif;font-size:20px;font-weight:600}
.src{font-size:11px;color:#8595ab;background:#eef2f7;padding:3px 9px;border-radius:999px;font-weight:600}

.seg{display:flex;gap:4px;background:#eef2f7;padding:4px;border-radius:999px}
.seg button{border:0;background:transparent;font-size:12.5px;font-weight:600;color:#5a6b82;
  padding:6px 12px;border-radius:999px;cursor:pointer;font-family:'Inter'}
.seg button.active{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.08)}

.chart-wrap{position:relative;height:240px}
.chart-legend{display:flex;gap:16px;justify-content:center;margin-top:12px;font-size:12.5px;color:#5a6b82}
.chart-legend span{display:flex;align-items:center;gap:6px}
.lg-dot{width:10px;height:10px;border-radius:3px}

/* Prévisions */
.forecast{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px}
.fc-day{flex:0 0 auto;width:78px;text-align:center;background:#f5f8fc;border-radius:16px;padding:12px 8px}
.fc-dow{font-size:12px;font-weight:700;color:#5a6b82;text-transform:capitalize}
.fc-ico{font-size:26px;margin:6px 0}
.fc-hi{font-weight:700;font-size:15px}
.fc-lo{font-size:13px;color:#8595ab}

/* Pollen */
.pollen{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}
.pl-item{background:#f5f8fc;border-radius:14px;padding:12px}
.pl-name{font-size:13px;font-weight:600;color:#3a4a60}
.pl-bar{height:6px;border-radius:999px;background:#e4eaf2;margin-top:8px;overflow:hidden}
.pl-fill{height:100%;border-radius:999px;width:0;transition:width .8s ease}
.pl-lvl{font-size:11.5px;color:#8595ab;margin-top:5px}

/* Radar */
.radar-map{height:300px;border-radius:16px;overflow:hidden;background:#dde6f0}
.radar-map .leaflet-control-attribution{font-size:9px}
.radar-bar{display:flex;align-items:center;gap:10px;margin-top:12px}
.radar-play{flex:0 0 auto;width:38px;height:38px;border-radius:50%;border:0;cursor:pointer;
  background:var(--ink);color:#fff;font-size:14px}
.radar-play:active{transform:scale(.94)}
.radar-slider{flex:1;accent-color:var(--ink)}
.radar-time{flex:0 0 auto;font-size:13px;font-weight:600;color:#5a6b82;min-width:96px;text-align:right;font-variant-numeric:tabular-nums}
.radar-note{font-size:11.5px;color:#8595ab;margin-top:8px}
.radar-note a{color:#5a6b82}

/* Footer */
.foot{text-align:center;margin-top:28px;font-size:13px;color:var(--text-dim);line-height:1.7}
.foot-sub{font-size:12px;opacity:.8}
.foot-links{margin-top:8px}
.foot-links a{color:var(--text);text-decoration:underline;opacity:.85}

@media(min-width:560px){
  .tiles{grid-template-columns:repeat(3,1fr)}
  .tile-wind{grid-row:span 2;grid-column:span 1}
}