/* Biotherm Heat · produktsidan Silo (produkter/silo.html), ovanpå bas.css och sajt.css.
   Signatur: "Höjden" – sidan läses uppifrån och ned. Silon står kvar medan pelletsens väg ritas genom den, steg för steg.
   Kall, blå sida: bärnsten bara i pannan (02). Prefix si-. */

#vagen, #till-pannan, #hur-mycket, #fler-forrad { scroll-margin-top: calc(84px - var(--sektion) + clamp(40px, 4vw, 72px)); }

/* jättetalet i kall flödestextur – lodräta stråk, som pellets som rinner ned */
.si-textur { display: inline-block; font-weight: 760; font-stretch: 78%; font-variation-settings: "opsz" 96; letter-spacing: -.02em; line-height: .84; white-space: nowrap; font-variant-numeric: tabular-nums lining-nums;
  background: url("../bild/produktsidor/silo-tex.webp") 50% 30% / cover; -webkit-background-clip: text; background-clip: text; color: transparent; }
.si-textur small { font-size: .3em; font-weight: 400; font-stretch: 100%; letter-spacing: 0; margin-left: .14em; -webkit-text-fill-color: var(--is-3); }

/* ---------- hjälten ---------- */
.si-hero { position: relative; padding-top: clamp(116px, 9vw, 150px); overflow: hidden; isolation: isolate; }
.si-hero-glod { position: absolute; right: -10%; bottom: -12%; width: 70%; height: 60%; z-index: -1; pointer-events: none; background: radial-gradient(50% 50% at 62% 70%, rgba(31, 116, 184, .2), rgba(31, 116, 184, .06) 50%, rgba(31, 116, 184, 0) 76%); }
.si-hero-in { position: relative; }
.si-hero-rutnat { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--spalt); align-items: end; min-height: max(640px, calc(var(--vh) * 100 - clamp(116px, 9vw, 150px) - 24px)); }
/* marklinjen: silon och jättetalet står på samma mark */
.si-hero-rutnat::after { content: ""; position: absolute; left: calc(-1 * var(--marg)); right: calc(-1 * var(--marg)); bottom: 0; height: 1px; background: linear-gradient(90deg, rgba(159, 180, 196, 0), rgba(159, 180, 196, .34) 18%, rgba(159, 180, 196, .34) 82%, rgba(159, 180, 196, 0)); }
.si-hero-text { grid-column: 1 / span 7; padding: clamp(24px, 3vw, 56px) 0 clamp(22px, 2.2vw, 36px); }
.si-namn { margin-top: clamp(18px, 1.8vw, 28px); font-size: clamp(3.75rem, 1rem + 7.4vw, 11rem); line-height: .9; font-weight: 220; font-variation-settings: "opsz" 96; letter-spacing: -.045em; }
.si-hero .t-ingress { margin-top: clamp(22px, 2vw, 32px); max-width: 30em; }
.si-knappar { margin-top: clamp(26px, 2.6vw, 40px); display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; }
.si-hero-tal { margin-top: clamp(36px, 4.4vw, 80px); }
.si-hero-tal .t-etikett { display: block; margin-bottom: 14px; }
.si-hero-tal .si-textur { font-size: clamp(5rem, 1.6rem + 8.6vw, 13rem); }
.si-hero-silo { grid-column: 8 / -1; justify-self: center; position: relative; margin: 0; height: clamp(560px, calc(var(--vh) * 100 - 160px), 960px); }
.si-hero-silo::before { content: ""; position: absolute; left: -60%; right: -60%; bottom: -26px; height: 52px; border-radius: 50%; background: radial-gradient(closest-side, rgba(0, 0, 0, .6), rgba(0, 0, 0, 0)); }
.si-hero-silo img { position: relative; height: 100%; width: auto; max-width: none; }

/* ---------- 01 pelletsens väg genom silon (signatur) ---------- */
.si-vag-rutnat { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--spalt); align-items: start; }
.si-vag-fig { grid-column: 1 / span 5; position: sticky; top: 76px; height: calc(var(--vh) * 100 - 76px); min-height: 560px; margin: 0; display: flex; align-items: center; justify-content: center; }
.si-vag-silo { position: relative; height: calc(100% - 48px); max-height: 900px; aspect-ratio: 583 / 1700; }
.si-vag-silo::before { content: ""; position: absolute; left: -70%; right: -70%; bottom: -4%; height: 14%; border-radius: 50%; background: radial-gradient(closest-side, rgba(31, 116, 184, .26), rgba(31, 116, 184, 0)); }
.si-vag-silo img, .si-vag-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.si-vag-svg { overflow: visible; }
.si-v-fyll { transform: translateY(700px); transition: transform 1.9s var(--ease); }
.si-v-fyll.pa { transform: none; }
.si-v-yta { fill: none; stroke: #d6e6f8; stroke-opacity: .75; stroke-width: 3; }
.si-v-kon { fill: rgba(143, 178, 216, 0); transition: fill .9s ease; }
.si-v-kon.pa { fill: rgba(143, 178, 216, .2); }
.si-v-bas path { fill: none; stroke: url(#si-vg); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1 1; stroke-dashoffset: 1; opacity: .9; transition: stroke-dashoffset 1.1s var(--ease); }
.si-v-bas path.pa { stroke-dashoffset: 0; }
.si-v-flod path { fill: none; stroke: #f2f7fd; stroke-width: 7; stroke-linecap: round; stroke-dasharray: 1 30; opacity: 0; transition: opacity .6s ease .4s; }
.si-v-flod path.pa { opacity: .95; }
.si-vag-fig.syns .si-v-flod path.pa { animation: si-flod 1.1s linear infinite; }
@keyframes si-flod { to { stroke-dashoffset: -31; } }
html.visa-allt .si-v-flod path { animation: none !important; }
.si-pkt { position: absolute; left: var(--x); top: var(--y); width: 0; height: 0; pointer-events: none; }
.si-pkt i { position: absolute; left: -15px; top: -15px; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-size: .8125rem; font-weight: 500; font-variant-numeric: tabular-nums;
  color: var(--is-2); background: rgba(4, 10, 24, .82); box-shadow: inset 0 0 0 1px var(--linje-2); transition: background-color .5s ease, color .5s ease, box-shadow .5s ease, transform .6s var(--ease); }
.si-pkt.pa i { color: var(--natt); background: #dfe9f5; box-shadow: none; }
.si-pkt.nu i { background: #fff; color: var(--natt); transform: scale(1.18); box-shadow: 0 0 0 6px rgba(0, 152, 212, .28), 0 0 22px rgba(0, 152, 212, .45); }

.si-steg { grid-column: 7 / -1; }
.si-steg li { min-height: calc(var(--vh) * 58); display: flex; flex-direction: column; justify-content: center; padding: 48px 0; opacity: .34; transition: opacity .7s ease; }
.si-steg li:first-child { min-height: calc(var(--vh) * 52); justify-content: flex-start; padding-top: calc(var(--vh) * 12); }
.si-steg li:last-child { min-height: calc(var(--vh) * 62); }
.si-steg li.aktiv, html.visa-allt .si-steg li, .si-vag-rutnat.alla .si-steg li { opacity: 1; }
/* skärmdumpsläget: alla steg syns samtidigt, utan rullsträckan mellan dem */
html.visa-allt .si-steg li, html.visa-allt .si-steg li:first-child, html.visa-allt .si-steg li:last-child { min-height: 0; padding: clamp(56px, 6vw, 96px) 0; justify-content: flex-start; }
.si-steg-nr { display: flex; align-items: baseline; gap: 16px; font-size: .8125rem; line-height: 1.3; font-weight: 600; font-stretch: 80%; font-variation-settings: "opsz" 12; letter-spacing: .16em; text-transform: uppercase; color: var(--is-3); }
.si-steg-nr span { color: var(--bla); font-variant-numeric: tabular-nums; }
.si-steg .t-h3 { margin-top: 18px; max-width: 16em; }
.si-steg .t-brod { margin-top: 16px; max-width: 30em; }
.si-steg .lank { margin-top: 24px; }
.si-steg-data { margin-top: 28px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--spalt); max-width: 34em; }
.si-steg-data div { padding-top: 14px; border-top: 1px solid var(--linje); }
.si-steg-data dt { font-size: .75rem; font-weight: 600; font-stretch: 80%; letter-spacing: .16em; text-transform: uppercase; color: var(--is-3); }
.si-steg-data dd { margin: 6px 0 0; font-size: 1.125rem; color: var(--is); font-variant-numeric: tabular-nums; }

/* ---------- 02 från silon till pannan ---------- */
.si-pannan-topp { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--spalt); row-gap: 32px; align-items: end; }
.si-anl { grid-column: 1 / span 8; margin: 0 0 0 calc(-1 * min(var(--marg), 72px));
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 84%, transparent), linear-gradient(180deg, transparent, #000 16%, #000 82%, transparent);
  -webkit-mask-composite: source-in; mask-image: linear-gradient(90deg, transparent, #000 9%, #000 84%, transparent), linear-gradient(180deg, transparent, #000 16%, #000 82%, transparent); mask-composite: intersect; }
.si-anl img { width: 100%; height: auto; }
.si-pannan-text { grid-column: 9 / -1; padding-bottom: clamp(12px, 2vw, 40px); }
.si-pannan-text .t-etikett { margin-bottom: 30px; }
.si-pannan-text .t-ingress { margin-top: 28px; }
.si-satt { margin-top: clamp(56px, 6vw, 104px); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(32px, 5vw, 96px); row-gap: 56px; }
.si-satt-ett { padding-top: 22px; border-top: 1px solid var(--linje-2); }
.si-satt-ett .t-h3 { margin-top: 14px; }
.si-satt-ett .t-brod { margin-top: 14px; max-width: 32em; }
.si-satt-ett .t-brod a { color: var(--is); text-decoration: underline; text-decoration-color: var(--bla); text-underline-offset: 4px; }
.si-satt-svg { display: block; margin-top: clamp(28px, 3vw, 44px); width: 100%; max-width: 560px; height: auto; overflow: visible; }
.si-s-mark { stroke: rgba(159, 180, 196, .3); stroke-width: 1; fill: none; }
.si-s-silo { fill: rgba(170, 196, 228, .05); stroke: #b9c8d6; stroke-width: 1.4; stroke-linejoin: round; }
.si-s-skruv, .si-s-slang { fill: none; stroke: #8fb2d8; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.si-s-slang { stroke-width: 2.4; stroke-dasharray: 2 7; }
.si-s-skruv-f { stroke: #8fb2d8; stroke-opacity: .55; stroke-width: 1.1; }
.si-s-sluss { fill: #061330; stroke: #b9c8d6; stroke-width: 1.4; }
.si-s-sluss-r { stroke: #b9c8d6; stroke-width: 1.2; }
.si-s-panna { fill: #0a1226; stroke: var(--varm); stroke-width: 1.5; }
.si-s-glod { stroke: var(--varm); stroke-width: 1.6; }
.si-s-matt { fill: none; stroke: rgba(212, 226, 243, .7); stroke-width: 1; }
.si-s-et { font-family: "Bricolage Grotesque", sans-serif; font-size: 11px; font-weight: 600; font-stretch: 80%; letter-spacing: .14em; text-transform: uppercase; fill: var(--is-3); }
.si-s-tal { font-family: "Bricolage Grotesque", sans-serif; font-size: 17px; font-weight: 400; fill: var(--is); }
.si-pannor { margin-top: clamp(72px, 8vw, 136px); }
.si-pannor-huvud { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px 32px; }
.si-pannor-huvud .t-brod { color: var(--is-3); font-size: 1rem; }
.si-pannor-lista { margin-top: 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--spalt); }
.si-pannor-lista a { position: relative; display: grid; grid-template-columns: clamp(84px, 8vw, 128px) minmax(0, 1fr) auto; align-items: center; column-gap: 18px; padding: 18px 0 20px; border-top: 1px solid var(--linje); }
.si-pannor-lista a::after { content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 1px; background: var(--bla); transform: scaleX(0); transform-origin: 0 50%; transition: transform .9s var(--ease); }
.si-pannor-lista a:hover::after, .si-pannor-lista a:focus-visible::after { transform: scaleX(1); }
.si-p-bild { height: clamp(84px, 8vw, 124px); display: flex; align-items: flex-end; justify-content: center; }
.si-p-bild img { max-height: 100%; max-width: 100%; width: auto; height: auto; object-fit: contain; transition: transform .8s var(--ease); }
.si-pannor-lista a:hover .si-p-bild img { transform: translateY(-4px); }
.si-p-text b { display: block; font-size: clamp(1.125rem, 1rem + .3vw, 1.3125rem); font-weight: 400; letter-spacing: -.01em; color: var(--is); }
.si-p-text > span { display: block; margin-top: 4px; font-size: .9375rem; line-height: 1.45; color: var(--is-2); }
.si-pannor-lista .pil { color: var(--bla); transition: transform .6s var(--ease); }
.si-pannor-lista a:hover .pil, .si-pannor-lista a:focus-visible .pil { transform: translateX(4px); }

/* ---------- 03 hur mycket pellets går åt ---------- */
.si-matare { margin: 0; padding-top: clamp(24px, 2.4vw, 36px); border-top: 1px solid var(--linje-2); }
.si-m-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.si-matare-rad { margin-top: clamp(36px, 4vw, 64px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--spalt); align-items: start; }
.si-matare-rad li { display: flex; flex-direction: column; align-items: flex-start; }
.si-m-svg { width: clamp(92px, 9vw, 150px); height: auto; overflow: visible; }
.si-m-kant { fill: none; stroke: rgba(212, 226, 243, .62); stroke-width: 1.2; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.si-m-ben { fill: none; stroke: rgba(212, 226, 243, .34); stroke-width: 1; vector-effect: non-scaling-stroke; }
.si-m-niva { fill: url(#si-m-g); transform-box: fill-box; transform-origin: 50% 100%; transition: transform 1.6s var(--ease) calc(var(--d, 0s) + .25s); }
.js .si-matare-rad li:not(.syns) .si-m-niva { transform: scaleY(0); }
.si-m-mer { font-family: "Bricolage Grotesque", sans-serif; font-size: 15px; font-weight: 500; fill: var(--bla); }
.si-matare-rad b { margin-top: 26px; font-size: clamp(2.25rem, 1.5rem + 1.8vw, 3.75rem); font-weight: 240; font-variation-settings: "opsz" 96; letter-spacing: -.03em; line-height: 1; font-variant-numeric: tabular-nums; white-space: nowrap; }
.si-matare-rad li > span { margin-top: 10px; padding-top: 12px; border-top: 1px solid var(--linje); align-self: stretch; color: var(--is-2); font-size: .9375rem; line-height: 1.45; }
.si-m-over b { color: var(--is); }
.si-dim-not { margin-top: clamp(36px, 3.4vw, 56px); max-width: 64em; }
.si-dim-not a { color: var(--is-2); text-decoration: underline; text-decoration-color: var(--bla); text-underline-offset: 3px; }

/* ---------- 04 hela anläggningen ---------- */
.si-mer-rutnat { row-gap: 48px; align-items: start; }
.si-mer-text { grid-column: 1 / span 5; }
.si-mer-text .t-etikett { margin-bottom: 30px; }
.si-mer-text .t-brod { margin-top: 28px; max-width: 30em; }
.si-pdf { margin-top: clamp(32px, 3vw, 48px); }
.si-pdf a { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; border-top: 1px solid var(--linje); }
.si-pdf li:last-child a { border-bottom: 1px solid var(--linje); }
.si-pdf b { display: block; font-size: 1.0625rem; font-weight: 400; }
.si-pdf small { display: block; margin-top: 2px; font-size: .875rem; color: var(--is-3); }
.si-pdf .pil { color: var(--bla); transition: transform .6s var(--ease); }
.si-pdf a:hover .pil.ner { transform: rotate(90deg) translateX(4px); }
.si-lankar { grid-column: 7 / -1; }
.si-lankar a { position: relative; display: grid; grid-template-columns: minmax(7.5rem, 10rem) minmax(0, 1fr) auto; align-items: baseline; column-gap: 24px; padding: 20px 0 22px; border-top: 1px solid var(--linje); }
.si-lankar li:last-child a { border-bottom: 1px solid var(--linje); }
.si-lankar a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--bla); transform: scaleX(0); transform-origin: 0 50%; transition: transform .9s var(--ease); }
.si-lankar a:hover::after, .si-lankar a:focus-visible::after { transform: scaleX(1); }
.si-l-tal { font-size: clamp(1.25rem, 1.05rem + .5vw, 1.625rem); font-weight: 260; font-variation-settings: "opsz" 48; letter-spacing: -.02em; color: var(--is); font-variant-numeric: tabular-nums; white-space: nowrap; }
.si-l-text b { display: block; font-size: clamp(1.125rem, 1.02rem + .3vw, 1.3125rem); font-weight: 400; letter-spacing: -.01em; transition: color .3s ease; }
.si-l-text > span { display: block; margin-top: 4px; font-size: .96875rem; line-height: 1.5; color: var(--is-2); }
.si-lankar .pil { align-self: center; color: var(--bla); transition: transform .6s var(--ease); }
.si-lankar a:hover b, .si-lankar a:focus-visible b { color: #fff; }
.si-lankar a:hover .pil, .si-lankar a:focus-visible .pil { transform: translateX(4px); }

/* ---------- mellanstora skärmar ---------- */
@media (max-width: 1100px) {
  .si-hero-text { grid-column: 1 / span 7; }
  .si-hero-silo { grid-column: 8 / -1; height: clamp(520px, 70vw, 760px); }
  .si-vag-fig { grid-column: 1 / span 5; }
  .si-steg { grid-column: 6 / -1; }
  .si-anl { grid-column: 1 / -1; margin: 0 calc(-1 * var(--marg)); }
  .si-pannan-text { grid-column: 1 / span 9; }
  .si-satt { grid-template-columns: 1fr; }
  .si-pannor-lista { grid-template-columns: 1fr; }
  .si-matare-rad { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
  .si-mer-text, .si-lankar { grid-column: 1 / -1; }
}

/* ---------- mobil ---------- */
@media (max-width: 760px) {
  .si-hero { padding-top: 96px; }
  .si-hero-rutnat { display: flex; flex-direction: column; align-items: stretch; min-height: 0; }
  .si-hero-text { padding: 26px 0 0; }
  .si-namn { font-size: clamp(3.25rem, 17vw, 4.75rem); }
  .si-hero .t-ingress { font-size: 1.1875rem; }
  .si-knappar { flex-direction: column; align-items: stretch; gap: 16px; }
  .si-knappar .knapp { width: 100%; }
  .si-knappar .lank { justify-content: center; }
  .si-hero-tal { margin-top: 36px; }
  .si-hero-tal .si-textur { font-size: clamp(4.5rem, 25vw, 6.5rem); }
  .si-hero-silo { align-self: center; height: 520px; margin-top: 32px; }
  .si-hero-glod { right: -40%; width: 140%; }

  .si-vag-rutnat { display: block; }
  .si-vag-fig { position: sticky; top: 68px; z-index: 2; height: clamp(300px, 44vh, 420px); min-height: 0; margin: 0 calc(-1 * var(--marg)); padding: 10px 0 18px; background: linear-gradient(180deg, var(--natt) 0%, var(--natt) 86%, rgba(4, 10, 24, 0) 100%); }
  .si-vag-silo { height: 100%; }
  html.visa-allt .si-vag-fig { position: relative; top: auto; }   /* skärmdumpsläget: silon en gång, stegen under */
  .si-pkt i { left: -12px; top: -12px; width: 24px; height: 24px; font-size: .6875rem; }
  .si-v-bas path, .si-v-flod path { stroke-width: 9; }
  .si-steg li, .si-steg li:first-child, .si-steg li:last-child { min-height: 50vh; padding: 36px 0; justify-content: center; }
  .si-steg .t-h3 { font-size: 1.75rem; }
  .si-steg-data { grid-template-columns: 1fr 1fr; }

  .si-anl { margin: 0 calc(-1 * var(--marg)); }
  .si-pannan-text { grid-column: 1 / -1; padding-bottom: 0; }
  .si-satt-svg { margin-inline: -4px; }
  .si-s-et { font-size: 17px; }
  .si-s-tal { font-size: 24px; }
  .si-pannor-huvud { display: block; }
  .si-pannor-huvud .t-brod { margin-top: 8px; }
  .si-matare-rad { column-gap: 16px; }
  .si-m-svg { width: 96px; }
  .si-matare-rad b { font-size: 2.5rem; }
  .si-lankar a { grid-template-columns: minmax(0, 1fr) auto; row-gap: 6px; }
  .si-l-tal { grid-column: 1 / -1; font-size: 1.125rem; color: var(--is-2); }
  .si-l-text { grid-column: 1; }
  .si-lankar .pil { grid-column: 2; grid-row: 2; }
}