/* Ice Hack 2027 – vintermörker och gatlyktssken. Färgparen kontrolleras i checks/verify.py. */
:root {
  --natt: #0a1020;
  --kort: #131c33;
  --kant: #26324f;
  --text: #eef2f8;
  --dampad: #aab5ca;
  --sken: #ffb547;
  --is: #8fd3ff;
  --knapptext: #1a1205;
  /* Ljuskäglans högsta opacitet. Text ligger ovanpå den – höj inte utan att köra kontrollerna. */
  --kagla-max: 0.16;
  --bredd: 68rem;
  --sidmarg: clamp(1.25rem, 4vw, 3rem);
  --rubrik: "Avenir Next Condensed", "Arial Narrow", "Roboto Condensed", system-ui, sans-serif;
  --brod: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--natt); color: var(--text); font-family: var(--brod); line-height: 1.55; -webkit-text-size-adjust: 100%; }
body { margin: 0; }
a { color: var(--is); }
a:focus-visible, .knapp:focus-visible { outline: 3px solid var(--is); outline-offset: 3px; }

.hoppa { position: absolute; left: -999px; top: 0; background: var(--sken); color: var(--knapptext); padding: .5rem 1rem; z-index: 10; }
.hoppa:focus { left: 1rem; top: 1rem; }
.dold { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* Toppen */
.topp { position: absolute; inset: 0 0 auto; z-index: 3; display: flex; justify-content: space-between; align-items: center; padding: 1.25rem var(--sidmarg); }
.ordmarke { font-family: var(--rubrik); font-weight: 800; letter-spacing: .14em; color: var(--text); text-decoration: none; font-size: 1.05rem; }
.ordmarke span { color: var(--sken); }
.sprak { color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: .1em; border: 1px solid var(--kant); border-radius: 999px; padding: .3rem .8rem; font-size: .85rem; }
.sprak:hover { border-color: var(--is); }

/* Hero */
.hero { position: relative; min-height: min(100svh, 56rem); display: flex; align-items: center; overflow: hidden; padding: 6rem var(--sidmarg) 5rem; }
.scen { position: absolute; inset: 0; width: 100%; height: 100%; }
.scen .mark { fill: #121a2e; }
.scen .stolpe path { stroke: #3a4766; stroke-width: 9; stroke-linecap: round; }
.scen .lykta { fill: #3a4766; }
.scen .lampa { fill: var(--sken); }
.scen .sensor rect { fill: #1d2843; stroke: #3a4766; stroke-width: 2; }
.scen .puls { fill: var(--is); animation: puls 2.4s ease-out infinite; transform-origin: 1029px 341px; }
.scen .sno circle { fill: #dfe7f5; opacity: .55; animation: falla linear infinite; }
@keyframes falla { to { transform: translate(-60px, 1400px); } }
@keyframes puls { 0% { opacity: 1; transform: scale(1); } 70% { opacity: .2; transform: scale(2.2); } 100% { opacity: 1; transform: scale(1); } }

.hero-text { position: relative; z-index: 2; max-width: 38rem; margin: 0 auto 0 max(0px, calc((100% + 2 * var(--sidmarg) - var(--bredd)) / 2)); }
.overrubrik { color: var(--is); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: .85rem; margin: 0 0 1rem; }
h1 { margin: 0 0 1.25rem; font-family: var(--rubrik); line-height: .95; }
.h1-namn { display: block; font-size: clamp(1.1rem, 2.4vw, 1.4rem); letter-spacing: .3em; text-transform: uppercase; color: var(--sken); margin-bottom: .6rem; font-weight: 700; }
.h1-tagg { display: block; font-size: clamp(3rem, 9vw, 6.2rem); font-weight: 800; letter-spacing: -.01em; }
.ingress { font-size: clamp(1.05rem, 1.9vw, 1.25rem); color: var(--text); max-width: 34rem; }
.nar { color: var(--dampad); margin: 1.5rem 0; }
.nar strong { color: var(--text); }
.gratis { color: var(--sken); font-weight: 700; }

.knapp { display: inline-block; background: var(--sken); color: var(--knapptext); font-weight: 800; text-decoration: none; padding: .9rem 1.6rem; border-radius: 999px; margin: 0; box-shadow: 0 0 2.5rem rgba(255, 181, 71, .25); }
.knapp:hover { filter: brightness(1.08); }
.knapp-snart { background: transparent; color: var(--sken); border: 2px solid var(--sken); box-shadow: none; }

/* Sektioner */
.sektion { max-width: var(--bredd); margin: 0 auto; padding: clamp(3.5rem, 8vw, 6rem) var(--sidmarg); border-top: 1px solid var(--kant); }
.etikett { color: var(--sken); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: .8rem; margin: 0 0 .75rem; }
h2 { font-family: var(--rubrik); font-size: clamp(2rem, 4.5vw, 3rem); line-height: 1.05; margin: 0 0 1.5rem; font-weight: 800; max-width: 22ch; }
h3 { margin: 0 0 .4rem; font-size: 1.1rem; }
.sektion > p { max-width: 40rem; }
.utmaning p { font-size: 1.15rem; }
.utmaning .fraga { font-family: var(--rubrik); font-size: clamp(1.5rem, 3vw, 2rem); color: var(--sken); font-weight: 700; margin-top: 2rem; }
.ingress-liten { color: var(--dampad); }

.kortnat { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 1rem; }
.kort { background: var(--kort); border: 1px solid var(--kant); border-radius: 14px; padding: 1.4rem; }
.kort p { color: var(--dampad); margin: 0; }
.ikon { width: 2rem; height: 2rem; color: var(--is); margin-bottom: .8rem; }

.tva { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: 1rem; }
.ruta { background: var(--kort); border: 1px solid var(--kant); border-radius: 14px; padding: 1.6rem; }
.ruta h3 { color: var(--sken); }
.ruta p { margin: 0; color: var(--text); }

.schema { list-style: none; padding: 0; margin: 0; max-width: 44rem; }
.schema li { display: grid; grid-template-columns: 6.5rem 9rem 1fr; gap: 1rem; padding: .9rem 0; border-bottom: 1px solid var(--kant); }
.schema .dag { font-weight: 700; color: var(--sken); }
.schema .tid { color: var(--dampad); }
.not { color: var(--dampad); font-size: .95rem; margin-top: 1.25rem; }

.praktiskt { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1.5rem 2rem; margin: 0; }
.praktiskt .bred { grid-column: 1 / -1; }
.praktiskt dt { font-weight: 700; color: var(--sken); margin-bottom: .3rem; }
.praktiskt dd { margin: 0; }

.arrangorer { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .75rem; }
.arrangorer li { border: 1px solid var(--kant); background: var(--kort); border-radius: 999px; padding: .7rem 1.3rem; font-weight: 700; }

.avslut { text-align: center; }
.avslut h2, .avslut > p { margin-left: auto; margin-right: auto; }

.fot { text-align: center; color: var(--dampad); padding: 2rem 1rem 3rem; border-top: 1px solid var(--kant); }
.fot p { margin: .3rem 0; }

/* Smal skärm: scenen ligger ovanför texten i stället för bakom, annars skär stolpen genom rubriken. */
@media (max-width: 67rem) {
  .hero { display: block; min-height: 0; padding-top: 0; }
  .scen { position: relative; inset: auto; display: block; height: 19rem; margin: 0 calc(-1 * var(--sidmarg)); width: calc(100% + 2 * var(--sidmarg)); -webkit-mask-image: linear-gradient(#000 65%, transparent); mask-image: linear-gradient(#000 65%, transparent); }
  .hero-text { margin-top: 0; }
}
@media (max-width: 40rem) {
  .schema li { grid-template-columns: 1fr; gap: .1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .scen .sno circle, .scen .puls { animation: none; }
}