/* ============================================================
   HOME meteothom · « la descente atmosphérique »
   Style propre à la page d'accueil (s'appuie sur horizon.css).
   ============================================================ */

/* ---------- Fond : la couleur respire selon la zone visible ---------- */
body.hz {
  transition: background-color 1.2s ease;
}
body[data-zone="espace"]   { background-color: #04060f; }
body[data-zone="radar"]    { background-color: #071226; }
body[data-zone="sol"]      { background-color: #08182b; }
body[data-zone="climat"]   { background-color: #120f22; }
body[data-zone="modeles"]  { background-color: #0a1430; }
body[data-zone="outils"]   { background-color: #0b1222; }
body[data-zone="avis"]     { background-color: #101426; }
[data-theme="light"] body[data-zone] { background-color: var(--hz-bg); }

/* ---------- Topbar ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px clamp(16px, 3vw, 34px);
  background: linear-gradient(to bottom, rgba(4, 8, 18, .82), rgba(4, 8, 18, 0));
  transition: background .3s, backdrop-filter .3s, box-shadow .3s;
}
.topbar.scrolled {
  background: var(--hz-glass-strong);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--hz-line);
}
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--hz-ink); text-decoration: none !important; }
.brand .logo { font-weight: 800; font-size: 1.18rem; letter-spacing: -.02em; }
.brand .logo em { font-style: normal; color: var(--hz-accent); }
.brand .tag { font-family: var(--hz-mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--hz-ink-faint); }
.topnav { display: flex; align-items: center; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a {
  padding: 7px 12px; border-radius: 999px; white-space: nowrap;
  color: var(--hz-ink-soft); font-size: .88rem; font-weight: 600;
  text-decoration: none !important; transition: color .15s, background .15s;
}
.topnav a:hover { color: var(--hz-ink); }
.topnav a.active { color: var(--hz-accent); background: rgba(70, 200, 255, .12); }
.top-actions { display: flex; align-items: center; gap: 10px; }
.theme-btn {
  background: var(--hz-glass); border: 1px solid var(--hz-line);
  color: var(--hz-ink); width: 36px; height: 36px; border-radius: 50%;
  cursor: pointer; font-size: 1rem; display: grid; place-items: center;
}
.theme-btn:hover { border-color: var(--hz-accent); }
.visitors { font-family: var(--hz-mono); font-size: .74rem; }
@media (max-width: 860px) {
  .brand .tag, .visitors { display: none; }
}

/* ---------- Altimètre (rail de scroll, desktop) ---------- */
.altimeter {
  position: fixed; left: 22px; top: 50%; transform: translateY(-50%);
  z-index: 150; display: grid; gap: 4px;
}
.altimeter a {
  display: flex; align-items: center; gap: 10px;
  color: var(--hz-ink-faint); text-decoration: none !important;
  font-family: var(--hz-mono); font-size: .68rem; letter-spacing: .08em;
  padding: 5px 0; transition: color .2s;
}
.altimeter a::before {
  content: ''; width: 18px; height: 2px; border-radius: 2px;
  background: currentColor; transition: width .25s var(--hz-ease);
}
.altimeter a span { opacity: 0; transform: translateX(-6px); transition: .25s var(--hz-ease); }
.altimeter a:hover span, .altimeter a.active span { opacity: 1; transform: none; }
.altimeter a.active { color: var(--hz-accent); }
.altimeter a.active::before { width: 30px; }
@media (max-width: 1280px) { .altimeter { display: none; } }

/* ---------- Héro ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: grid; place-items: center; text-align: center;
  padding: 110px 0 70px; overflow: hidden;
}
#sky {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; z-index: 0;
}
.hero-inner { position: relative; z-index: 2; display: grid; gap: 22px; justify-items: center; }
.hero .hz-display {
  margin: 0;
  background: linear-gradient(110deg, #ffffff 15%, var(--hz-accent) 48%, #b7e5ff 80%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 6px 30px rgba(70, 200, 255, .22));
}
[data-theme="light"] .hero .hz-display {
  background: linear-gradient(110deg, #16233a 15%, var(--hz-accent-deep) 55%, #16233a 90%);
  -webkit-background-clip: text; background-clip: text;
}
.hero-sub {
  max-width: 640px; font-size: clamp(1rem, 2.2vw, 1.22rem);
  color: var(--hz-ink-soft); margin: 0;
}
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.scroll-cue {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  z-index: 2; color: var(--hz-ink-faint); font-size: .8rem; letter-spacing: .2em;
  text-transform: uppercase; font-family: var(--hz-mono);
  display: grid; justify-items: center; gap: 8px;
  text-decoration: none !important;
}
.scroll-cue::after {
  content: ''; width: 1px; height: 38px;
  background: linear-gradient(to bottom, var(--hz-accent), transparent);
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue { 0%, 100% { transform: scaleY(.4); opacity: .4; } 50% { transform: scaleY(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .scroll-cue::after { animation: none; } }

/* ---------- Zones (chapitres) ---------- */
.zone { position: relative; padding: clamp(80px, 12vh, 140px) 0; }
.zone-head { max-width: 720px; margin-bottom: 38px; }
.zone-head h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 800; }
.zone-head p { color: var(--hz-ink-soft); font-size: 1.05rem; margin: 0; }
.zone-alt {
  position: absolute; right: clamp(8px, 4vw, 60px); top: 30px;
  font-family: var(--hz-mono); font-weight: 800;
  font-size: clamp(3rem, 9vw, 7rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--hz-line-strong);
  user-select: none; pointer-events: none; opacity: .8;
}
.zone-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: start; }
.zone-grid.flip { grid-template-columns: .9fr 1.1fr; }
@media (max-width: 920px) { .zone-grid, .zone-grid.flip { grid-template-columns: 1fr; } }
.zone-text { display: grid; gap: 16px; align-content: start; }
.zone-text ul { margin: 0; padding-left: 20px; color: var(--hz-ink-soft); display: grid; gap: 7px; }
.zone-text ul b { color: var(--hz-ink); }
.zone-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }

/* ---------- Comparateur VIS / IR ---------- */
.compare {
  position: relative; border-radius: var(--hz-radius); overflow: hidden;
  border: 1px solid var(--hz-line-strong); box-shadow: var(--hz-shadow);
  touch-action: none; cursor: ew-resize; background: #000;
}
.compare img { width: 100%; height: auto; display: block; user-select: none; -webkit-user-drag: none; }
.compare .layer-top { position: absolute; inset: 0; overflow: hidden; }
.compare .layer-top img { height: 100%; width: auto; max-width: none; }
.compare .handle {
  position: absolute; top: 0; bottom: 0; width: 2px; background: var(--hz-accent);
  box-shadow: 0 0 14px rgba(70, 200, 255, .8);
}
.compare .handle::after {
  content: '⇆'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--hz-accent); color: #04111f; font-weight: 800;
  display: grid; place-items: center; font-size: 1rem;
}
.compare .tag {
  position: absolute; top: 12px; padding: 4px 10px; border-radius: 999px;
  background: rgba(4, 10, 20, .72); color: #dceaf7; font-family: var(--hz-mono);
  font-size: .7rem; letter-spacing: .1em; pointer-events: none;
}
.compare .tag.left { left: 12px; } .compare .tag.right { right: 12px; }
.media-caption { font-family: var(--hz-mono); font-size: .74rem; color: var(--hz-ink-faint); margin-top: 10px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- Scrub temporel ---------- */
.scrub { display: grid; gap: 10px; }
.scrub-view {
  position: relative; border-radius: var(--hz-radius); overflow: hidden;
  border: 1px solid var(--hz-line-strong); background: #000; box-shadow: var(--hz-shadow);
  cursor: grab;
}
.scrub-view:active { cursor: grabbing; }
.scrub-view img { width: 100%; display: block; user-select: none; -webkit-user-drag: none; }
.scrub-time {
  position: absolute; bottom: 12px; left: 12px;
  background: rgba(4, 10, 20, .75); color: #dceaf7;
  font-family: var(--hz-mono); font-size: .78rem; padding: 5px 11px; border-radius: 999px;
  pointer-events: none;
}
.scrub input[type="range"] { width: 100%; cursor: pointer; }
.scrub-hint { font-size: .8rem; color: var(--hz-ink-faint); text-align: center; }

/* ---------- Radar : balayage ---------- */
.radar-wrap {
  position: relative; border-radius: var(--hz-radius); overflow: hidden;
  border: 1px solid var(--hz-line-strong); box-shadow: var(--hz-shadow); background: #000;
}
.radar-wrap img { width: 100%; display: block; }
.radar-wrap .sweep {
  position: absolute; inset: -25%;
  background: conic-gradient(from 0deg, rgba(70, 200, 255, 0) 0deg, rgba(70, 200, 255, 0) 320deg, rgba(70, 200, 255, .16) 352deg, rgba(120, 230, 255, .34) 360deg);
  animation: sweep 6s linear infinite; pointer-events: none; border-radius: 50%;
}
@keyframes sweep { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .radar-wrap .sweep { display: none; } }

/* ---------- Direct stations ---------- */
.live-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 640px) { .live-board { grid-template-columns: 1fr; } }
.live-cell { padding: 20px; display: grid; gap: 4px; text-align: center; }
.live-cell .v { font-size: clamp(1.9rem, 4vw, 2.6rem); font-weight: 800; font-family: var(--hz-mono); letter-spacing: -.03em; }
.live-cell .v.hot { color: #ff9d5c; } .live-cell .v.cold { color: #7cc8ff; } .live-cell .v.wind { color: #b7a6ff; }
.live-cell .w { font-size: .8rem; color: var(--hz-ink-faint); }
.live-cell .s { font-size: .88rem; color: var(--hz-ink-soft); font-weight: 600; }
.live-meta { margin-top: 12px; text-align: center; font-family: var(--hz-mono); font-size: .76rem; color: var(--hz-ink-faint); }

/* ---------- Bandes climatiques ---------- */
.stripes-wrap { display: grid; gap: 8px; }
.stripes {
  display: flex; height: 130px; border-radius: var(--hz-radius-sm);
  overflow: hidden; border: 1px solid var(--hz-line); cursor: crosshair;
}
.stripes i { flex: 1; display: block; transition: transform .12s; transform-origin: bottom; }
.stripes i:hover { transform: scaleY(1.08); outline: 1px solid #fff3; }
.stripes-label { font-family: var(--hz-mono); font-size: .76rem; color: var(--hz-ink-faint); display: flex; justify-content: space-between; }
.stripes-label output { color: var(--hz-ink); }

/* ---------- Diagramme .meteociel ---------- */
.pipeline { display: grid; gap: 0; }
.pipeline .step {
  display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: start;
  padding: 14px 0;
}
.pipeline .step + .step { border-top: 1px dashed var(--hz-line); }
.pipeline .ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(70, 200, 255, .1); border: 1px solid rgba(70, 200, 255, .25);
  font-size: 1.25rem;
}
.pipeline b { display: block; margin-bottom: 2px; }
.pipeline p { margin: 0; font-size: .92rem; color: var(--hz-ink-soft); }

/* ---------- Cartes proto (outils, climat) ---------- */
.proto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 860px) { .proto-grid { grid-template-columns: 1fr; } }
.proto-card { display: grid; gap: 12px; align-content: start; position: relative; overflow: hidden; }
.proto-card .head { display: flex; align-items: center; gap: 12px; }
.proto-card .head .em { font-size: 1.7rem; }
.proto-card h3 { margin: 0; font-size: 1.25rem; }
.proto-card p { margin: 0; color: var(--hz-ink-soft); font-size: .96rem; }
.proto-card .foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

/* ---------- Avis ---------- */
.rate-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: .88rem; color: var(--hz-ink-soft); }
.rate-line .avg { font-weight: 800; color: var(--hz-ink); font-family: var(--hz-mono); }
.rate-btn {
  background: none; border: none; color: var(--hz-accent); cursor: pointer;
  font: inherit; font-size: .88rem; font-weight: 600; padding: 2px 4px; border-radius: 6px;
}
.rate-btn:hover { text-decoration: underline; text-underline-offset: 3px; }

.reviews-wall { columns: 3 280px; column-gap: 18px; }
.review-card { break-inside: avoid; margin-bottom: 18px; display: grid; gap: 10px; }
.review-card .who { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.review-card .who b { font-size: .95rem; }
.review-card .msg { margin: 0; color: var(--hz-ink-soft); font-size: .94rem; }
.review-card .meta { font-family: var(--hz-mono); font-size: .7rem; color: var(--hz-ink-faint); display: flex; justify-content: space-between; gap: 8px; }
.reviews-empty { text-align: center; color: var(--hz-ink-faint); padding: 30px 0; }

/* ---------- Footer ---------- */
.footer {
  margin-top: 60px; border-top: 1px solid var(--hz-line);
  background: linear-gradient(to bottom, transparent, rgba(3, 7, 15, .65));
  padding: 56px 0 34px;
}
[data-theme="light"] .footer { background: linear-gradient(to bottom, transparent, rgba(210, 224, 242, .6)); }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 30px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h4 { margin: 0 0 12px; font-size: .8rem; text-transform: uppercase; letter-spacing: .14em; color: var(--hz-ink-faint); }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer ul a { color: var(--hz-ink-soft); font-size: .92rem; }
.footer ul a:hover { color: var(--hz-accent); }
.footer .blurb { color: var(--hz-ink-soft); font-size: .92rem; margin: 10px 0 0; max-width: 320px; }
.footer-bottom {
  margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--hz-line);
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-family: var(--hz-mono); font-size: .74rem; color: var(--hz-ink-faint);
}