:root { --ps-blue:#38bdf8; --ps-purple:#a78bfa; --ps-panel:rgba(7, 22, 43, .84); }
* { box-sizing:border-box; }
body { margin:0; min-height:100vh; color:#f8fbff; }
.ps-shell { width:min(1160px, calc(100% - 32px)); margin:42px auto 54px; }
.ps-heading,.card-head,.result-card,.explanation-card { display:flex; align-items:center; justify-content:space-between; gap:22px; }
.eyebrow,.section-label { display:block; color:#7dd3fc; font-size:12px; letter-spacing:.12em; font-weight:900; }.ps-heading { align-items:flex-end; margin-bottom:24px; }.ps-heading h1,h2 { margin:7px 0 0; color:#fff; font-weight:900; }.ps-heading h1{font-size:clamp(30px,5vw,44px);line-height:1.1}.ps-heading p{max-width:630px;margin:12px 0 0;color:#d5e4f5;line-height:1.75}.model-badge,.distance-badge{flex:0 0 auto;border:1px solid rgba(125,211,252,.4);border-radius:999px;background:rgba(14,116,144,.18);color:#d7f5ff;padding:8px 12px;font-size:13px;font-weight:800}.ps-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(290px,.72fr);gap:20px}.record-column{display:grid;gap:16px}.panel-card{border:1px solid rgba(154,182,214,.22);border-radius:26px;background:var(--ps-panel);box-shadow:0 20px 48px rgba(2,8,22,.22);backdrop-filter:blur(14px)}.record-card,.control-card{padding:22px}.card-head h2,.control-card h2{font-size:21px}.record-canvas{display:block;width:100%;height:190px;margin-top:17px;border:1px solid rgba(125,211,252,.15);border-radius:14px;background:#07162e}.arrival-row{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:12px;color:#ccdced;font-size:13px}.arrival-row span{display:inline-flex;align-items:center;gap:5px}.arrival-row b{color:#fff}.key{width:8px;height:8px;border-radius:50%;background:var(--ps-blue)}.key-s{background:#a78bfa}.key-surface{background:#fbbf24}.control-card{display:flex;flex-direction:column}.control-group{margin-top:27px}.control-group label{display:flex;justify-content:space-between;gap:12px;font-weight:800}.control-group output{color:#7dd3fc}.control-group input{width:100%;margin:14px 0 0;accent-color:#38bdf8}.control-group p{margin:9px 0 0;color:#b9cce0;font-size:13px;line-height:1.6}.surface-speed{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin-top:25px;padding:14px;border:1px solid rgba(125,211,252,.2);border-radius:14px;background:rgba(14,116,144,.13)}.surface-speed strong{color:#fef3c7;font-size:18px}.surface-speed small{grid-column:1/-1;color:#b9cce0}#reset-button{width:100%;margin-top:auto;padding:12px;border:1px solid rgba(125,211,252,.45);border-radius:11px;background:rgba(14,116,144,.25);color:#effcff;font:inherit;font-size:13px;font-weight:800;cursor:pointer}#reset-button:hover{background:rgba(14,116,144,.46)}.result-card{margin-top:20px;padding:25px 28px}.result-card p{margin:9px 0 0;color:#c2d4e7;font-size:14px}.result-value{white-space:nowrap}.result-value strong{color:#fff;font-size:clamp(44px,6vw,66px);letter-spacing:-.06em}.result-value span{margin-left:8px;color:#7dd3fc;font-weight:800}.formula{display:flex;align-items:center;gap:8px;color:#d6edff;font-family:Georgia,serif;font-size:18px}.fraction{display:inline-flex;flex-direction:column;align-items:center;line-height:1.1}.fraction b:first-child{padding:0 5px 2px;border-bottom:1px solid #d6edff}.explanation-card{align-items:flex-start;margin-top:20px;padding:22px 28px}.explanation-card p{max-width:700px;margin:0;color:#d0e0ef;line-height:1.8}
html[data-site-theme="light"] .ps-shell{color:#172033}html[data-site-theme="light"] .ps-heading h1,html[data-site-theme="light"] h2{color:#0f172a}html[data-site-theme="light"] .ps-heading p,html[data-site-theme="light"] .control-group p,html[data-site-theme="light"] .result-card p,html[data-site-theme="light"] .explanation-card p{color:#475569}html[data-site-theme="light"] .eyebrow,html[data-site-theme="light"] .section-label,html[data-site-theme="light"] .control-group output{color:#0369a1}html[data-site-theme="light"] .model-badge,html[data-site-theme="light"] .distance-badge{border-color:#7dd3fc;background:#ecfeff;color:#0c4a6e}html[data-site-theme="light"] .panel-card{background:rgba(255,255,255,.96);border-color:#d6dfed;box-shadow:0 16px 38px rgba(15,23,42,.08)}html[data-site-theme="light"] .arrival-row{color:#475569}html[data-site-theme="light"] .arrival-row b{color:#0f172a}html[data-site-theme="light"] .surface-speed{border-color:#bae6fd;background:#f0f9ff}html[data-site-theme="light"] .surface-speed strong{color:#92400e}html[data-site-theme="light"] #reset-button{border-color:#0284c7;background:#0369a1;color:#fff}html[data-site-theme="light"] .result-value strong{color:#075985}html[data-site-theme="light"] .result-value span,html[data-site-theme="light"] .formula{color:#0369a1}html[data-site-theme="light"] .fraction b:first-child{border-color:#0369a1}
@media(max-width:850px){.ps-heading,.result-card{align-items:flex-start;flex-direction:column}.ps-grid{grid-template-columns:1fr}.formula{justify-content:flex-start}.explanation-card{flex-direction:column;gap:12px}}@media(max-width:540px){.ps-shell{width:min(100% - 20px,1160px);margin-top:24px}.record-card,.control-card{padding:17px}.record-canvas{height:165px}.result-card,.explanation-card{padding:20px}.result-value strong{font-size:50px}}html[data-graphics-quality="low"] .panel-card{backdrop-filter:none;box-shadow:none}