/* Fire Under Ice - brochure look. Font: Cabin via @fontsource/cabin 5.3.0 (SIL OFL, see fonts/OFL.txt) */

@font-face{font-family:Cabin;font-style:normal;font-weight:400;font-display:swap;src:url(fonts/cabin-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:Cabin;font-style:italic;font-weight:400;font-display:swap;src:url(fonts/cabin-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:Cabin;font-style:normal;font-weight:600;font-display:swap;src:url(fonts/cabin-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Cabin;font-style:normal;font-weight:700;font-display:swap;src:url(fonts/cabin-latin-700-normal.woff2) format("woff2")}

:root{
  --bg:#0D0D0D;
  --ice:#00C2FF;
  --magma:#FF4500;
  /* muted grey #A3A3A3 on #0D0D0D: contrast 7.7:1 (AA needs 4.5:1) */
  --muted:#A3A3A3;
  --text:#FFFFFF;
  --tile:#F2F2F2;
  --line:#262626;
  --nav-h:3.25rem;
  --gutter:1.25rem;
  --font:Cabin,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:1.0625rem;line-height:1.65;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
ul,ol{list-style:none;margin:0;padding:0}
a{color:var(--ice)}
a:focus-visible,input:focus-visible,button:focus-visible{outline:2px solid var(--ice);outline-offset:3px}
p{margin:0 0 1em}
h1,h2,h3{margin:0;line-height:1.15}
h2{color:var(--ice);font-size:clamp(1.9rem,6vw,3rem);font-weight:700;margin-bottom:.6em}
h3{font-size:1.2rem;font-weight:600;color:var(--text);margin-bottom:.4em}

.kicker{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.18em;color:var(--magma);margin:0 0 .6rem}
.intro{font-size:1.2rem;color:var(--muted);max-width:65ch}

/* Sections */
main>section:not(.hero){padding:clamp(3.5rem,10vw,7rem) var(--gutter);max-width:76rem;margin:0 auto}
section>p,.project-text,.csi p{max-width:65ch}

/* Nav */
.site-header{position:sticky;top:0;z-index:20;background:rgba(13,13,13,.82);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header nav{display:flex;align-items:center;gap:1rem;min-height:var(--nav-h);padding:0 var(--gutter);max-width:90rem;margin:0 auto}
.brand{flex:none;color:var(--text);text-decoration:none;font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem}
.site-header ul{display:flex;gap:1.1rem;margin-left:auto;overflow-x:auto;scrollbar-width:none;min-width:0}
.site-header ul::-webkit-scrollbar{display:none}
.site-header li a{display:block;padding:.9rem 0;color:var(--muted);text-decoration:none;font-size:.85rem;white-space:nowrap}
.site-header li a:hover{color:var(--text)}
.site-header li a[aria-current="true"]{color:var(--ice)}

/* Hero */
.hero{position:relative;height:100svh;min-height:34rem;margin-top:calc(var(--nav-h) * -1);overflow:hidden;display:flex;align-items:flex-end}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top,var(--bg) 0%,rgba(13,13,13,.75) 28%,rgba(13,13,13,0) 60%),
             linear-gradient(to right,rgba(13,13,13,.85) 0%,rgba(13,13,13,.45) 45%,rgba(13,13,13,0) 80%)}
.hero-text{position:relative;z-index:1;padding:0 var(--gutter) 5.5rem;max-width:44rem}
.hero h1{font-size:clamp(2.6rem,12vw,6.5rem);font-weight:700;text-transform:uppercase;letter-spacing:.02em;line-height:1}
.hero .subtitle{color:var(--ice);font-size:clamp(1.1rem,3.5vw,1.6rem);margin:.8rem 0 1rem}
.hero .kicker{font-size:1rem;letter-spacing:.25em}
.hero-logo{width:3.5rem;margin-top:1.2rem;opacity:.9}
.scroll-cue{position:absolute;z-index:1;left:50%;bottom:1.2rem;transform:translateX(-50%);width:2.75rem;height:2.75rem;display:grid;place-items:center;color:var(--text);text-decoration:none;font-size:1.5rem;border:1px solid rgba(255,255,255,.35);border-radius:50%}
.scroll-cue:hover{color:var(--ice);border-color:var(--ice)}

/* Project */
.project-body{display:grid;gap:2rem;margin-top:1.5rem}
.project-figure{margin:0}
figcaption{font-size:.85rem;color:var(--muted);margin-top:.6rem;line-height:1.5}
.stats{display:flex;flex-wrap:wrap;gap:1.5rem 2.5rem;margin:3rem 0 0;padding-top:2rem;border-top:1px solid var(--line)}
.stats li{display:flex;flex-direction:column;min-width:7rem}
.stats strong{font-size:clamp(2rem,8vw,3.2rem);color:var(--ice);line-height:1;font-weight:700}
.stats span{color:var(--muted);font-size:.9rem;margin-top:.4rem}
.note{color:var(--muted);font-size:.9rem;margin-top:1.5rem}

/* Cards */
.cards{display:grid;gap:2.5rem;margin-top:2.5rem}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;margin-bottom:1rem;background:var(--bg)}
.card img[src*="survey"],.card img[src*="map-"]{object-fit:contain;border:1px solid var(--line)}
.card h3{margin-bottom:.5rem}
.card p:last-child{color:var(--muted);margin-bottom:0}

/* Places: teaser cards on the home page, thumbnail grid on a place page */
.place-cards{display:grid;gap:2.5rem;margin-top:2.5rem}
.place-card{position:relative}
.place-card-link{display:block}
.place-card-link::after{content:"";position:absolute;inset:0}
.place-card-link:focus-visible{outline:none}
.place-card-link:focus-visible::after{outline:2px solid var(--ice);outline-offset:6px}
.place-card>img,.place-card-link img{width:100%;aspect-ratio:4/3;object-fit:cover;margin-bottom:1rem;background:var(--bg)}
.place-card:hover h3{color:var(--ice)}
.place-card p:not(.kicker):not(.place-more){color:var(--muted)}
.place-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin:1rem 0}
.place-thumbs img{width:100%;aspect-ratio:1;object-fit:cover;background:var(--bg)}
.place-more{color:var(--ice);font-weight:600;margin:0}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem;margin-top:2.5rem}
.gallery a{display:block}
.gallery img{width:100%;aspect-ratio:1;object-fit:cover;background:var(--bg)}
.gallery-caption,.gallery-credit{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* Photo viewer: one <dialog> per place page, opened by script.js */
.viewer{width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;background:rgba(0,0,0,.94);color:var(--text);touch-action:pan-y pinch-zoom}
.viewer[open]{display:grid;grid-template-columns:3rem 1fr 3rem;grid-template-rows:1fr;align-items:center}
.viewer::backdrop{background:rgba(0,0,0,.94)}
.viewer-figure{grid-column:2;margin:0;padding:3.5rem 0 1rem;text-align:center;min-width:0}
.viewer-figure img{width:auto;max-width:100%;max-height:calc(100svh - 7rem);margin:0 auto;object-fit:contain}
.viewer figcaption{margin-top:.8rem;color:var(--text)}
.viewer-caption{margin:0;font-size:.95rem}
.viewer-credit{margin:0;font-size:.8rem;color:var(--muted)}
.viewer button{width:2.75rem;height:2.75rem;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:var(--text);font:inherit;font-size:1.8rem;line-height:1;cursor:pointer}
.viewer button:hover{background:rgba(255,255,255,.25)}
.viewer-prev{grid-column:1;justify-self:center}
.viewer-next{grid-column:3;justify-self:center}
.viewer-close{position:absolute;top:.5rem;right:.5rem;z-index:1}
@media (prefers-reduced-motion:no-preference){
  .viewer[open]{animation:viewer-in .2s ease}
  @keyframes viewer-in{from{opacity:0}to{opacity:1}}
}

/* Compare. Default (no JS): stacked, each with its label. */
.compare-switch{display:flex;flex-wrap:wrap;gap:.5rem;margin:4rem 0 1rem}
.compare-switch[hidden]{display:none}
.compare-switch button{padding:.4rem 1rem;border:1px solid var(--muted);border-radius:2rem;background:transparent;color:var(--muted);font:inherit;font-size:.85rem;font-weight:600;letter-spacing:.04em;cursor:pointer}
.compare-switch button:hover{border-color:var(--ice);color:var(--ice)}
.compare-switch button[aria-pressed="true"]{border-color:var(--ice);background:var(--ice);color:#0D0D0D}
.compare-switch:not([hidden])+.compare{margin-top:0}
.compare{margin:4rem 0 0;display:grid;gap:1rem}
.compare-pane{position:relative}
.compare-pane img{width:100%}
.compare-label{position:absolute;top:.75rem;left:.75rem;padding:.15rem .6rem;background:rgba(13,13,13,.7);font-weight:700;letter-spacing:.1em;color:var(--ice)}
.compare-top .compare-label{color:var(--magma)}
.compare figcaption{margin-top:0}
.js .compare{display:grid;grid-template-columns:1fr;gap:0}
.js .compare>.compare-pane,.js .compare>input{grid-area:1/1}
.js .compare-top{clip-path:inset(0 calc(100% - var(--pos,50%)) 0 0)}
.js .compare>figcaption{grid-area:2/1;grid-column:1;margin-top:.6rem}
.js .compare>input{display:block;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;z-index:2;-webkit-appearance:none;appearance:none;background:transparent}
.js .compare:has(input:focus-visible) .compare-pane:first-of-type::before{outline:3px solid var(--ice);outline-offset:3px}
.js .compare>input::-webkit-slider-thumb{-webkit-appearance:none;width:2rem;height:100%}
.js .compare>input::-moz-range-thumb{width:2rem;height:100%;border:0;background:transparent}
/* Visible divider: line + round handle at --pos, drawn on the bottom (unclipped) pane */
.js .compare-pane:first-of-type::after{content:"";position:absolute;top:0;bottom:0;left:var(--pos,50%);width:2px;margin-left:-1px;background:#fff;z-index:1;pointer-events:none;box-shadow:0 0 6px rgba(0,0,0,.6)}
.js .compare-pane:first-of-type::before{content:"\2194";position:absolute;top:50%;left:var(--pos,50%);width:2.5rem;height:2.5rem;margin:-1.25rem 0 0 -1.25rem;display:grid;place-items:center;border-radius:50%;background:#fff;color:#0D0D0D;font-size:1.2rem;z-index:1;pointer-events:none;box-shadow:0 0 8px rgba(0,0,0,.6)}
.js .compare-pane:first-of-type .compare-label{left:auto;right:.75rem}
.map{margin:4rem 0 0}
.science-figure{margin:3rem 0 0}
.science-figure img{width:100%;max-width:70rem}
.model-load{display:inline-flex;align-items:center;gap:.5rem;margin-top:1rem;padding:.6rem 1.2rem;border:1px solid var(--ice);border-radius:2rem;background:transparent;color:var(--ice);font:inherit;font-weight:600;letter-spacing:.04em;cursor:pointer}
.model-load:hover{background:var(--ice);color:#0D0D0D}
.model-load[disabled]{opacity:.6;cursor:progress}
.model-load[hidden]{display:none}
model-viewer.model-view{display:block;width:100%;height:auto;max-width:70rem;aspect-ratio:2000/811;background:#0D0D0D;--poster-color:transparent;--progress-bar-height:0px}
.model-ring{width:28px;height:28px;border:3px solid var(--magma);border-radius:50%;box-shadow:0 0 6px rgba(0,0,0,.7);pointer-events:none}
.model-hint{font-size:.85rem;color:var(--ice);margin:.6rem 0 0}
.map img{width:100%;max-width:56rem;border:1px solid var(--line)}

/* Video */
.video{position:relative;display:block;aspect-ratio:16/9;max-width:60rem;margin-top:2rem;background:#000;overflow:hidden;color:var(--magma)}
.video img{width:100%;height:100%;object-fit:cover}
.video .play{position:absolute;top:50%;left:50%;width:4.5rem;height:4.5rem;transform:translate(-50%,-60%);transition:transform .2s}
.video:hover .play{transform:translate(-50%,-60%) scale(1.08)}
.video-label{position:absolute;left:0;right:0;bottom:0;padding:2rem 1rem .8rem;text-align:center;color:var(--text);font-size:.9rem;font-weight:600;letter-spacing:.06em;background:linear-gradient(to top,rgba(13,13,13,.85),transparent)}
.video iframe{display:block;width:100%;height:100%;border:0;aspect-ratio:16/9}

/* Team */
.csi{margin:2.5rem 0 3rem;padding-bottom:2.5rem;border-bottom:1px solid var(--line)}
.csi-logo{width:5.5rem;margin-bottom:1rem}
.team-group{margin-top:2.5rem}
.team-group h3{color:var(--magma);font-size:.85rem;text-transform:uppercase;letter-spacing:.15em;margin-bottom:1.2rem}
.team{display:grid;gap:1.5rem 1.5rem}
.team li{display:grid;grid-template-columns:96px 1fr;grid-template-rows:auto auto auto;column-gap:1rem;align-items:center;align-content:center}
.team img{grid-row:1/4;width:96px;height:96px;border-radius:50%;object-fit:cover}
.team strong{font-weight:700;align-self:end}
.team span{color:var(--muted);font-size:.9rem;line-height:1.4;align-self:start}
.team .role{color:var(--magma);font-size:.85rem;font-weight:600;line-height:1.35;margin:.15rem 0 .25rem}

/* Press */
#press h3{color:var(--text);margin:2rem 0 .5rem;font-size:.85rem;text-transform:uppercase;letter-spacing:.15em}
.press-list li{padding:.8rem 0;border-bottom:1px solid var(--line)}
.press-list .year{color:var(--magma);font-variant-numeric:tabular-nums;font-weight:700;margin-right:.6rem}
.press-list .meta{display:block;color:var(--muted);font-size:.9rem}

/* Partners */
#partners h3{margin-top:2.5rem;color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.15em}
.logos{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem}
#partners h3+.logos{margin-top:1rem}
.logos li{background:var(--tile);border-radius:.6rem;height:72px;padding:8px 14px;display:flex;align-items:center;justify-content:center}
.logos a{display:flex;align-items:center;height:100%}
.logos img{flex:none;height:56px;width:auto;max-width:9rem;object-fit:contain}

/* Contact */
main>#contact.has-bg{position:relative;isolation:isolate;max-width:none;overflow:hidden;padding-left:max(var(--gutter),calc((100% - 76rem) / 2 + var(--gutter)));padding-right:var(--gutter)}
#contact.has-bg .kicker{color:#FF7A4D}
.contact-bg{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover}
/* Dark overlay: white, ice blue and the lighter kicker orange stay above 4.5:1 even over a white pixel */
#contact.has-bg::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(13,13,13,.9) 0%,rgba(13,13,13,.8) 45%,rgba(13,13,13,.35) 100%)}
.email{font-size:clamp(1.3rem,6vw,2.4rem);font-weight:600;word-break:break-word;text-decoration:none}
.email:hover{text-decoration:underline;text-underline-offset:.2em}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:3rem var(--gutter);color:var(--muted);font-size:.85rem;max-width:76rem;margin:0 auto}
.footer-logo{width:3.5rem;margin-bottom:1.2rem}
.credits li{margin-bottom:.3rem}
.site-footer a{color:var(--muted)}
.site-footer a:hover{color:var(--ice)}

/* Reveal on scroll: hidden only when JS is running, so no-JS visitors see everything */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.visible{opacity:1;transform:none}

@media (min-width:48rem){
  :root{--gutter:2.5rem;--nav-h:3.5rem}
  body{font-size:1.125rem}
  .brand{font-size:.9rem}
  .site-header ul{gap:2rem}
  .site-header li a{font-size:.95rem}
  .hero-text{padding-bottom:6rem;padding-left:4rem}
  .hero-logo{width:4.5rem}
  .project-body{grid-template-columns:1.1fr 1fr;gap:3rem;align-items:start}
  .cards{grid-template-columns:repeat(3,1fr);gap:2rem}
  .place-cards{grid-template-columns:repeat(2,1fr);gap:2rem}
  #field .cards{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .compare{grid-template-columns:1fr 1fr}
  .compare figcaption{grid-column:1/-1}
  .team{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:72rem){
  #field .cards{grid-template-columns:repeat(4,1fr)}
  .gallery{grid-template-columns:repeat(4,1fr)}
  .team{grid-template-columns:repeat(3,1fr)}
  .hero-text{padding-left:6rem}
}
@media (max-width:30rem){
  .brand{display:none} /* make room: all five nav links fit at 375px */
  .site-header ul{margin-left:0;width:100%;justify-content:space-between;gap:.5rem}
  .site-header li a{font-size:.9rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .hero-img{transform:none!important}
  .js .reveal{opacity:1;transform:none}
}

@media (max-width:47.99rem){model-viewer.model-view{aspect-ratio:1/1}}
/* Place page: title spacing and the Home / Next links under the gallery. */
.place h1{margin-bottom:1rem}
.place-next{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem 2rem;margin-top:2.5rem}