:root{
  --blue:#1a73e8; --blue-d:#0b3d91; --blue-l:#4fc3f7; --cyan:#8ab4f8;
  --ink:#202124; --muted:#5f6368; --line:#e8eaed; --bg:#f6f9ff; --white:#fff;
  --warn:#ea4335; --ok:#34a853;
  --r:18px; --sh:0 6px 24px rgba(11,61,145,.10); --sh-2:0 12px 40px rgba(11,61,145,.16);
  --ff:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- topbar ---- */
.topbar{position:sticky;top:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.brand b{color:var(--blue)}
.drop{width:26px;height:26px;fill:var(--blue);filter:drop-shadow(0 2px 6px rgba(26,115,232,.35))}
.nav{display:flex;gap:22px}
.nav a{color:var(--muted);font-weight:500;font-size:14px}
.nav a:hover{color:var(--blue);text-decoration:none}
@media(max-width:680px){.nav{display:none}}

/* ---- hero ---- */
.hero{position:relative;overflow:hidden;padding:74px 24px 90px;text-align:center;color:#fff}
.hero-bg{position:absolute;inset:0;z-index:0;
  background:radial-gradient(1200px 600px at 50% -10%,#4fc3f7 0%,#1a73e8 42%,#0b3d91 100%)}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:
   radial-gradient(420px 420px at 12% 110%,rgba(255,255,255,.18),transparent 60%),
   radial-gradient(520px 520px at 92% -10%,rgba(255,255,255,.16),transparent 60%),
   url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 30 Q15 18 30 30 T60 30' fill='none' stroke='%23ffffff' stroke-opacity='.07' stroke-width='2'/%3E%3C/svg%3E");}
.hero-inner{position:relative;z-index:1;max-width:880px;margin:0 auto}
.kicker{font-size:12px;font-weight:700;letter-spacing:.18em;opacity:.9;margin-bottom:16px}
.hero h1{font-size:clamp(32px,6vw,56px);font-weight:800;line-height:1.04}
.hero h1 span{color:#dbeafe}
.lede{font-size:clamp(15px,2.2vw,19px);max-width:680px;margin:18px auto 26px;opacity:.95;line-height:1.5}
.lede i{color:#dbeafe;font-style:italic}
.hero-stats{display:flex;gap:34px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:26px;font-weight:800}
.hero-stats span{font-size:12px;opacity:.85}

/* ---- search ---- */
.search-wrap{position:relative;max-width:560px;margin:0 auto}
.search-wrap .si{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--muted)}
#search{width:100%;padding:17px 18px 17px 50px;border:none;border-radius:40px;font-size:16px;font-family:var(--ff);
  box-shadow:var(--sh-2);outline:none;color:var(--ink)}
#search::placeholder{color:#9aa0a6}
.search-list{list-style:none;margin:8px 0 0;padding:6px;position:absolute;left:0;right:0;background:#fff;border-radius:16px;
  box-shadow:var(--sh-2);display:none;z-index:50;text-align:left;max-height:340px;overflow:auto}
.search-list li{padding:11px 16px;border-radius:10px;cursor:pointer;color:var(--ink);font-weight:500;display:flex;justify-content:space-between;align-items:center}
.search-list li:hover{background:#eef4ff}
.search-list li span{font-size:11px;color:var(--muted);font-weight:500}

/* ---- map section ---- */
.map-section{max-width:1240px;margin:-46px auto 0;padding:0 24px 40px;position:relative;z-index:2}
.map-head{background:#fff;border-radius:var(--r) var(--r) 0 0;padding:22px 26px 0}
.map-head h2{font-size:24px}
.map-head p{color:var(--muted);margin:6px 0 18px;font-size:14px}
.map-grid{display:grid;grid-template-columns:260px 1fr;gap:18px;background:#fff;border-radius:0 0 var(--r) var(--r);
  padding:0 18px 18px;box-shadow:var(--sh)}
@media(max-width:880px){.map-grid{grid-template-columns:1fr}.rail{order:2}}
.rail{display:flex;flex-direction:column;gap:14px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.card h4{font-size:13px;color:var(--muted);font-weight:700;margin-bottom:10px;letter-spacing:.02em}
.rank{list-style:none;margin:0;padding:0}
.rank li{display:flex;align-items:center;gap:9px;padding:7px 6px;border-radius:9px;cursor:pointer;font-size:14px;font-weight:500}
.rank li:hover{background:#eef4ff}
.rank li b{margin-left:auto;color:var(--blue);font-variant-numeric:tabular-nums}
.dot{width:11px;height:11px;border-radius:50%;flex:0 0 auto;box-shadow:0 0 0 2px #fff}
.legend-bar{height:12px;border-radius:8px;background:linear-gradient(90deg,#0b3d91,#1a73e8,#4fc3f7)}
.legend-lab{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:6px}

/* ---- map + panel ---- */
.map-wrap{position:relative;border-radius:14px;overflow:hidden;min-height:560px}
#map{height:560px;width:100%;background:#dfe7f5}
.err{padding:40px;text-align:center;color:var(--warn)}
.panel{position:absolute;top:0;right:0;height:100%;width:min(420px,92%);background:#fff;box-shadow:var(--sh-2);
  transform:translateX(105%);transition:transform .42s cubic-bezier(.22,1,.36,1);overflow-y:auto;z-index:1200;padding:24px 22px 32px}
.panel.open{transform:translateX(0)}
.panel-close{position:absolute;top:14px;right:14px;width:34px;height:34px;border:none;border-radius:50%;background:#f1f3f4;
  font-size:22px;line-height:1;color:var(--muted);cursor:pointer}
.panel-close:hover{background:#e3e7ea}
.zone-chip{display:inline-block;font-size:11px;font-weight:700;padding:5px 11px;border-radius:30px;margin-bottom:10px;color:#fff}
.zone-alta-montagna{background:#0b3d91}.zone-montagna{background:#1a73e8}.zone-collina{background:#3b8ed8}
.zone-pianura{background:#5fa0c9}.zone-bassa{background:#7b8a9a}
.panel h2{font-size:26px}
.punto{color:var(--muted);font-size:13px;margin:4px 0 12px}
.badge{display:inline-block;font-size:11px;font-weight:600;padding:5px 10px;border-radius:20px;margin-bottom:16px}
.badge.live{background:#e6f4ea;color:#137333}
.badge.loading{background:#fef7e0;color:#a56300}
.badge.est{background:#f1f3f4;color:#5f6368}

.hero-idx{display:flex;align-items:center;gap:18px;margin:6px 0 16px}
.ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto}
.ring-in{width:74px;height:74px;border-radius:50%;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring-n{font-size:28px;font-weight:800;color:var(--ink);line-height:1}
.ring-l{font-size:11px;color:var(--muted)}
.hero-title{font-weight:700;font-size:15px}
.hero-sub{color:var(--muted);font-size:13px;margin:4px 0 8px;line-height:1.4}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:11px;background:#eef4ff;color:var(--blue-d);padding:4px 10px;border-radius:20px;font-weight:600}
.insight{background:linear-gradient(135deg,#eaf2ff,#f3f8ff);border:1px solid #d7e6ff;border-radius:14px;padding:13px 15px;font-size:13.5px;line-height:1.5;margin:6px 0 18px}

.panel h3{font-size:14px;margin:18px 0 10px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}
.params{display:flex;flex-direction:column;gap:13px}
.prow{display:grid;grid-template-columns:1fr auto;gap:2px 10px}
.pk{font-weight:600;font-size:14px}
.pv{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.pv .u{font-weight:500;color:var(--muted);font-size:12px}
.pl{font-size:11px;color:var(--muted)}
.bar{grid-column:1/3;height:6px;background:#eef1f4;border-radius:6px;overflow:hidden;margin-top:3px}
.bar-fill{height:100%;background:linear-gradient(90deg,#4fc3f7,#1a73e8);border-radius:6px}
.bar-fill.warn{background:linear-gradient(90deg,#fbbc04,#ea4335)}
.official{display:inline-block;font-weight:600;font-size:14px}
#cmpChart{margin-top:4px}
.punto-sel{display:block;font-size:13px;color:var(--muted);margin:4px 0 6px}
.punto-sel select{font-family:var(--ff);font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;max-width:100%;margin-top:4px}
.panel-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;flex-wrap:wrap}
.btn-live{border:none;background:var(--blue);color:#fff;font-family:var(--ff);font-weight:600;font-size:13px;padding:9px 14px;border-radius:30px;cursor:pointer;box-shadow:var(--sh)}
.btn-live:hover{background:#1666d0}

/* ---- explain ---- */
.explain,.compare,.method{max-width:1100px;margin:64px auto;padding:0 24px}
.explain h2,.compare h2,.method h2{font-size:28px;margin-bottom:6px}
.explain>h2{text-align:center;margin-bottom:30px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.ecard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh);transition:transform .2s,box-shadow .2s}
.ecard:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.ecard .ic{font-size:30px;margin-bottom:10px}
.ecard h3{font-size:17px;margin-bottom:8px;color:var(--blue-d)}
.ecard p{font-size:13.5px;color:var(--muted);line-height:1.55;margin:0}

/* ---- compare ---- */
.compare .sub{color:var(--muted);max-width:760px;margin:0 0 24px;line-height:1.5}
.bw-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.bw{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;box-shadow:var(--sh)}
.bw b{display:block;font-size:15px;color:var(--ink)}
.bw span{display:block;font-size:24px;font-weight:800;color:var(--blue);margin:6px 0 2px;font-variant-numeric:tabular-nums}
.bw i{font-size:11px;color:var(--muted);font-style:normal}

/* ---- method ---- */
.method{background:#fff;border-radius:var(--r);padding:34px;box-shadow:var(--sh)}
.method ul{margin:14px 0 0;padding-left:20px;color:var(--muted);line-height:1.7;font-size:14px}
.method li{margin-bottom:10px}
.method b{color:var(--ink)}

/* ---- footer ---- */
.foot{text-align:center;padding:46px 24px;color:var(--muted)}
.foot .brand{justify-content:center;margin-bottom:10px;color:var(--ink)}
.foot p{font-size:13px;margin:0}

/* ---- map overlay control ---- */
.map-ctl{background:#fff;border-radius:12px;box-shadow:var(--sh);padding:10px 12px;font-family:var(--ff);max-width:200px}
.mc-title{font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.mc-btns{display:flex;flex-wrap:wrap;gap:4px}
.mc-btns button{font-family:var(--ff);font-size:11px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted);padding:4px 8px;border-radius:20px;cursor:pointer}
.mc-btns button:hover{border-color:var(--blue);color:var(--blue)}
.mc-btns button.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.mc-heat{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink);margin:9px 0 4px;cursor:pointer}
.mc-legend{margin-top:6px}
.mc-bar{height:10px;border-radius:6px;background:linear-gradient(90deg,#313695,#74add1,#fee090,#f46d43,#a50026)}
.mc-lab{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums}
.mc-unit{font-size:10px;color:var(--muted);margin-top:2px}
@media(max-width:680px){.map-ctl{max-width:150px}.mc-btns button{font-size:10px;padding:3px 6px}}

/* ---- insights ---- */
.insights{max-width:1240px;margin:60px auto;padding:0 24px}
.insights h2{font-size:28px}
.insights .sub{color:var(--muted);margin:6px 0 22px}
.scards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.scard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--sh)}
.scard b{display:block;font-size:26px;font-weight:800;color:var(--blue-d);line-height:1.1}
.scard b small{font-size:13px;color:var(--muted);font-weight:600}
.scard span{display:block;font-size:13px;font-weight:600;margin-top:4px}
.scard i{display:block;font-size:11px;color:var(--muted);font-style:normal;margin-top:3px}
.insight-text{background:linear-gradient(135deg,#eaf2ff,#f3f8ff);border:1px solid #d7e6ff;border-radius:var(--r);padding:18px 20px;margin:18px 0;line-height:1.6;font-size:15px}
.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:820px){.charts-grid{grid-template-columns:1fr}}
.chart-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh)}
.chart-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.chart-head h4{font-size:15px;color:var(--blue-d)}
.mini-sel{font-family:var(--ff);font-size:12px;padding:5px 8px;border:1px solid var(--line);border-radius:8px;color:var(--ink)}
.chart-box{position:relative;height:300px}
.chart-card.soft{opacity:.85}

/* ---- compact panel ---- */
.p-top{margin-bottom:6px}
.kstats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:14px 0}
.kstat{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:9px 11px}
.kstat .kl{display:block;font-size:11px;color:var(--muted);font-weight:600}
.kstat b{font-size:18px;font-weight:800;color:var(--ink)}
.kstat b small{font-size:11px;color:var(--muted);font-weight:600}
.dl{display:block;font-size:10.5px;font-style:normal;font-weight:700;margin-top:2px}
.dl.up{color:#ea4335}.dl.down{color:#137333}.dl.flat{color:var(--muted)}
.more{margin:6px 0 4px;border-top:1px solid var(--line);padding-top:8px}
.more>summary{cursor:pointer;font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;list-style:none}
.more>summary::-webkit-details-marker{display:none}
.more>summary::before{content:"▸ ";color:var(--blue)}
.more[open]>summary::before{content:"▾ "}
.params2{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;margin-top:10px}
.prow2{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px dotted var(--line);padding-bottom:3px;gap:8px}
.pk2{font-size:12.5px;color:var(--muted)}
.pv2{font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.pv2 small{font-weight:500;color:var(--muted);font-size:10px}
.pv2.warn{color:var(--warn)}
@media(max-width:520px){.params2{grid-template-columns:1fr}}
.mc-select{width:100%;font-family:var(--ff);font-size:12px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;margin-bottom:8px}
.mc-int{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--muted);margin-top:6px}
.mc-int input{flex:1}

.leaflet-container{font-family:var(--ff)}
.leaflet-tooltip{font-weight:600;border-radius:8px;border:none;box-shadow:var(--sh)}