html:has(.snow-page) { scroll-padding-top: 70px; }
.snow-page { background: #090d13; color: #f5f0e7; }
.snow-page h1,.snow-page h2 { margin: 0; font: 600 clamp(2rem,3.4vw,3rem)/1.06 var(--display); letter-spacing: -.01em; }
.snow-page em { font-style: normal; color: #e7c596; }
.snow-page .primary-action { font: 600 .95rem/1.3 var(--sans); text-transform: none; letter-spacing: 0; }
.snow-wrap { width: min(1180px,90%); margin-inline: auto; }
.snow-eyebrow { margin: 0 0 12px; color: #c5b7db; font: .72rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.snow-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 7%; align-items: center; padding: 34px 0 48px; }
.snow-intro h1 { font-size: clamp(3rem,5.2vw,5rem); }
.snow-intro p:not(.snow-eyebrow) { color: #cec8bf; max-width: 460px; margin: 22px 0; font-size: 1.04rem; }
.snow-intro figure { display: grid; grid-template-rows: minmax(0,1fr) auto; height: 380px; margin: 0; border: 1px solid #b9a38140; overflow: hidden; }
.snow-intro img { display: block; min-height: 0; width: 100%; height: 100%; object-fit: contain; background: #101820; }
.snow-intro figcaption { background: #090d13e8; padding: 10px; text-align: center; font-size: .73rem; color: #d5c7b4; }
.snow-predict { display: flex; justify-content: space-between; gap: 25px; align-items: center; border-top: 1px solid #ffffff24; padding: 28px 0; }
.snow-predict h2 { font-size: clamp(1.8rem,2.6vw,2.3rem); }
.snow-predict p:last-child { margin: 10px 0 0; color: #bdb9b2; font-size: .9rem; }
.snow-page button { min-height: 44px; border: 1px solid #ffffff30; border-radius: 4px; background: #232832; color: #f5f0e7; padding: 9px 12px; font: 500 .86rem/1.35 var(--sans); cursor: pointer; }
.snow-page button:disabled { cursor: default; opacity: .4; }
.snow-page button:hover:not(:disabled) { border-color: #eac696; background: #33343b; }
.snow-page button[aria-pressed="true"] { border-color: #ddbe8f; color: #ffe4b9; background: #3e3326; }
.snow-page :is(button,input,a):focus-visible { outline: 2px solid #f4d39f; outline-offset: 3px; }
.snow-choices { display: flex; gap: 10px; }
.snow-lab { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(315px,1fr); border: 1px solid #a38b6655; border-radius: 6px; overflow: clip; background: #121720; }
.snow-scene { min-width: 0; display: flex; flex-direction: column; background: #0c131a; }
.snow-scene-top { padding: 11px 14px; display: flex; justify-content: space-between; gap: 10px; font-size: .75rem; color: #d3cabc; border-bottom: 1px solid #ffffff18; }
#snow-stage-count { white-space: nowrap; color: #edcf9f; }
.snow-viewport { position: relative; height: min(47svh,385px); min-height: 220px; }
#snow-canvas { display: block; width: 100%; height: 100%; }
.snow-fallback { position: absolute; inset: 0; height: 100%; width: 100%; object-fit: contain; background: #101820; }
.snow-ready .snow-fallback { display: none; }
#snow-scene-key { min-height: 38px; margin: 0; padding: 10px 14px; color: #c6c2ba; font-size: .73rem; line-height: 1.4; border-bottom: 1px solid #ffffff15; }
.snow-stage-nav { display: flex; gap: 5px; align-items: center; padding: 8px; margin-top: auto; }
.snow-stage-nav > button { flex: 0 0 44px; font-size: 1.1rem; padding: 8px; }
.snow-stage-nav > div { display: grid; grid-template-columns: repeat(6,1fr); flex: 1; gap: 4px; }
.snow-stage-nav > div button { font-size: .74rem; padding: 8px 4px; }
.snow-console { padding: 22px; display: flex; flex-direction: column; gap: 12px; }
.snow-readout { min-height: 105px; }
.snow-readout h2 { font: 600 1.3rem/1.2 var(--sans); margin-bottom: 10px; }
.snow-readout p { margin: 0; color: #d0cac0; font-size: .9rem; line-height: 1.5; }
.snow-source { color: #cab9e9; font-size: .76rem; line-height: 1.5; text-underline-offset: 3px; }
.snow-timeline label { display: flex; justify-content: space-between; gap: 12px; font-size: .82rem; }
.snow-timeline label span { color: #b4afa9; font-size: .73rem; }
#snow-progress { width: 100%; height: 44px; margin: 0; accent-color: #ebc58c; }
.snow-page .snow-primary { color: #261b0b; background: #ebc58c; border-color: #ebc58c; font-weight: 600; }
.snow-page .snow-primary:hover:not(:disabled) { background: #ffdfa9; }
#snow-tilt[hidden] { display: none; }
.snow-air { border: 1px solid #ffffff24; padding: 18px; margin: 28px 0 0; min-width: 0; max-width: 560px; }
.snow-air legend { font-size: .8rem; padding: 0 0 7px; }
.snow-air > div { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.snow-air p { font-size: .7rem; color: #b9b6af; line-height: 1.45; margin: 7px 0 0; }
.snow-result { font-size: .78rem; color: #e8d4b5; margin: 0; line-height: 1.4; }
.snow-model-note { grid-column: 1/-1; margin: 0; border-top: 1px solid #ffffff18; padding: 10px 15px; background: #0d1118; color: #bcb6ad; font-size: .72rem; }
.snow-model-note a { color: #d1c0ec; white-space: nowrap; }
.snow-hint { color: #b0ada8; font-size: .78rem; margin: 12px 0 0; }
.snow-explain { display: grid; grid-template-columns: 1fr 1fr; gap: 8%; padding: 70px 0; }
.snow-evidence article { border-top: 1px solid #ffffff28; padding: 18px 0; }
.snow-evidence h3,.snow-science h3 { font: 600 1.02rem var(--sans); margin: 0 0 10px; }
.snow-evidence p { font-size: .92rem; color: #c9c2b7; line-height: 1.65; }
.snow-takeaway { padding: 32px; border-left: 2px solid #e0bc83; background: #1a1a20; }
.snow-takeaway > p:last-child { color: #cfc5b6; max-width: 650px; margin: 20px 0 0; }
.snow-science { padding: 60px 0 35px; }
.snow-science > div { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; margin: 25px 0; }
.snow-science p { font-size: .84rem; color: #bcb7b0; line-height: 1.65; }
.snow-science a { color: #cfbfea; }
.snow-review { border-top: 1px solid #ffffff22; padding-top: 18px; }
.snow-next { display: grid; grid-template-columns: 1fr 230px; gap: 30px; align-items: center; border-top: 1px solid #ffffff28; padding: 35px 0 60px; }
.snow-next p:not(.snow-eyebrow) { color: #c3bcb2; }
.snow-next img { width: 100%; height: 220px; object-fit: cover; object-position: center 47%; }
.snow-noscript { padding: 20px; border: 1px solid #e0bc83; }
@media (min-width: 851px) and (max-height: 740px) {
  .snow-console { gap: 7px; padding: 14px 18px; }
  .snow-readout { min-height: 95px; }
  .snow-readout h2 { font-size: 1.15rem; margin-bottom: 6px; }
  .snow-readout p { font-size: .84rem; }
  .snow-viewport { height: 315px; }
  .snow-result { font-size: .72rem; }
  .snow-air p { font-size: .67rem; }
}
@media (max-width: 850px) {
  .snow-predict { flex-direction: column; align-items: start; gap: 18px; }
  .snow-lab { grid-template-columns: 1fr; }
  .snow-viewport { height: min(38svh,330px); min-height: 170px; }
  .snow-console { gap: 10px; padding: 16px; }
  .snow-readout { min-height: 0; }
  .snow-readout h2 { font-size: 1.12rem; margin-bottom: 6px; }
  .snow-readout p { font-size: .86rem; }
  .snow-science > div { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 600px) {
  .snow-intro { grid-template-columns: 1fr; padding: 24px 0; gap: 20px; }
  .snow-intro h1 { font-size: 2.9rem; }
  .snow-intro p:not(.snow-eyebrow) { margin: 15px 0; font-size: .94rem; }
  .snow-intro figure { height: 210px; order: 2; }
  .snow-choices { width: 100%; }
  .snow-choices button { flex: 1; }
  .snow-scene-top { font-size: .67rem; padding: 8px 10px; }
  #snow-scene-key { padding: 7px 10px; font-size: .65rem; min-height: 32px; }
  .snow-stage-nav { padding: 5px; gap: 3px; }
  .snow-stage-nav > div { gap: 2px; }
  .snow-stage-nav > div button { padding: 6px 1px; font-size: .65rem; }
  .snow-stage-nav > button { flex-basis: 44px; }
  .snow-explain { grid-template-columns: 1fr; gap: 28px; padding: 45px 0; }
  .snow-takeaway { padding: 24px; }
  .snow-next { grid-template-columns: 1fr; }
  .snow-next img { display: none; }
}
@media (max-width: 380px) {
  .snow-stage-nav > div button { font-size: .57rem; letter-spacing: -.02em; }
}
@media (max-width: 600px) and (max-height: 700px) {
  .snow-viewport { height: 163px; min-height: 163px; }
  .snow-console { gap: 7px; padding: 10px; }
  .snow-readout p { font-size: .8rem; line-height: 1.4; }
  .snow-readout h2 { font-size: 1.03rem; }
  .snow-scene-top { padding-block: 6px; }
  #snow-scene-key { padding-block: 5px; }
}