@font-face{font-family:Figtree;src:url(/assets/fonts/figtree.woff2) format('woff2');font-weight:400 700;font-display:swap}
@font-face{font-family:Fredoka;src:url(/assets/fonts/fredoka.woff2) format('woff2');font-weight:500 700;font-display:swap}
/* metric-matched fallbacks keep text from shifting while the web fonts load */
@font-face{font-family:'Figtree Fallback';src:local('Arial');size-adjust:98.53%;ascent-override:96.42%;descent-override:25.37%;line-gap-override:0%}
@font-face{font-family:'Fredoka Fallback';src:local('Arial');size-adjust:98.96%;ascent-override:98.43%;descent-override:23.85%;line-gap-override:0%}

:root{
  --night:#0f1f3d;--night-2:#182c52;--night-3:#223a68;
  --snow:#f6f9fd;--ice:#e3eef9;--frost:#cfe0f2;
  --berry:#c8223f;--berry-dark:#a51a33;--pine:#1f6b4f;--gold:#f2c14e;
  --candy:#ff6fa3;--candy-soft:#ffe8f1;
  --ink:#16223a;--text:#43506a;--muted:#6f7b93;--line:#dde6f1;
  --body:Figtree,'Figtree Fallback',system-ui,sans-serif;
  --head:Fredoka,'Fredoka Fallback',system-ui,sans-serif;
  --bar:68px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--snow);color:var(--text);font:400 1.0625rem/1.75 var(--body)}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
:focus-visible{outline:2px solid var(--berry);outline-offset:3px}
h1,h2,h3{font-family:var(--head);font-weight:600;color:var(--ink);line-height:1.18;text-wrap:balance}
.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[id]{scroll-margin-top:calc(var(--bar) + 12px)}

/* header */
.top{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-row{height:var(--bar);display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--head);font-weight:600;font-size:1.2rem;color:var(--night);text-decoration:none;white-space:nowrap}
.brand b,.foot-brand b{color:var(--berry);font-weight:600}
.menu{display:flex;gap:24px;margin-left:auto}
.menu a{position:relative;padding:6px 0;font-weight:600;font-size:.95rem;color:var(--text);text-decoration:none}
.menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--berry);transform:scaleX(0);transition:transform .2s}
.menu a:hover,.menu a.is-here{color:var(--night)}
.menu a:hover::after,.menu a.is-here::after{transform:scaleX(1)}
.play{flex:none;padding:9px 26px;border-radius:12px;background:var(--berry);color:#fff;font-weight:700;text-decoration:none;box-shadow:0 6px 16px rgba(200,34,63,.25);transition:background .2s,transform .2s}
.play:hover{background:var(--berry-dark);transform:translateY(-1px)}
.menu-toggle{display:none;flex:none;margin-left:auto;width:42px;height:42px;padding:11px 9px;border:0;background:none;cursor:pointer;flex-direction:column;justify-content:space-between}
.menu-toggle i{display:block;height:2px;border-radius:2px;background:var(--night);transition:transform .2s,opacity .2s}
.menu-toggle[aria-expanded="true"] i:nth-child(2){transform:translateY(8px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] i:nth-child(3){opacity:0}
.menu-toggle[aria-expanded="true"] i:nth-child(4){transform:translateY(-8px) rotate(-45deg)}

/* slider */
.stage{padding-top:26px}
.stage-frame{position:relative;border-radius:24px;overflow:hidden;background:var(--night);box-shadow:0 22px 50px rgba(15,31,61,.22)}
.stage-slides{display:grid}
.stage-slide{grid-area:1/1;position:relative;margin:0;opacity:0;visibility:hidden;transition:opacity .7s,visibility .7s}
.stage-slide.is-on{opacity:1;visibility:visible}
.stage-slide img{width:100%;aspect-ratio:2/1;object-fit:cover}
.stage-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,31,61,.85) 0%,rgba(15,31,61,.25) 38%,transparent 60%);pointer-events:none}
.stage-slide figcaption{position:absolute;z-index:1;left:40px;bottom:36px;max-width:520px;color:#e7eef8}
.stage-slide figcaption p{margin:0}
.stage-title{margin-bottom:4px!important;font-family:var(--head);font-weight:600;font-size:clamp(1.4rem,1rem + 1.4vw,2.1rem);line-height:1.2;color:#fff}
.stage-dots{position:absolute;z-index:2;right:34px;bottom:38px;display:flex;gap:8px}
.stage-dots button{width:10px;height:10px;padding:0;border:2px solid #fff;border-radius:50%;background:transparent;cursor:pointer;transition:background .2s}
.stage-dots button.is-on{background:#fff}

/* opening + tag cards */
.opening{padding:48px 0 30px}
.opening-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:start}
.opening h1{margin:0 0 14px;font-size:clamp(1.8rem,1.3rem + 1.6vw,2.5rem)}
.opening p{margin:0}
.tags{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tag{position:relative;padding:22px 20px 18px;border-radius:18px;border:2px dashed transparent}
.tag::before{content:"";position:absolute;top:14px;right:16px;width:12px;height:12px;border-radius:50%;background:var(--snow);box-shadow:inset 0 0 0 2px rgba(0,0,0,.08)}
.tag-summer{background:var(--candy-soft);border-color:#f8c2d6}
.tag-winter{background:var(--night);border-color:#3a5286;color:#dbe6f5}
.tag-name{margin:0;font-size:1.12rem;line-height:1.25;padding-right:18px}
.tag-winter .tag-name{color:#fff}
.tag-date{margin:2px 0 12px!important;font-size:.88rem;font-weight:600;color:#c2356a}
.tag-winter .tag-date{color:var(--gold)}
.tag dl{margin:0 0 12px}
.tag dl div{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px solid rgba(0,0,0,.07);font-size:.9rem}
.tag-winter dl div{border-color:rgba(255,255,255,.1)}
.tag dt{color:var(--muted)}
.tag-winter dt{color:#9fb1cf}
.tag dd{margin:0;font-weight:700;color:var(--ink);text-align:right}
.tag-winter dd{color:#fff}
.tag a{font-size:.9rem;font-weight:700;color:#c2356a;text-decoration:none}
.tag-winter a{color:var(--gold)}
.tag a::after{content:" ↓"}
.tag a:hover{text-decoration:underline;text-underline-offset:3px}

/* content blocks */
.block{padding:72px 0}
.block h2{margin:0 0 16px;font-size:clamp(1.6rem,1.25rem + 1.2vw,2.2rem)}
.block h3{margin:28px 0 8px;font-size:1.25rem}
.block p{margin:0 0 14px}
.text>h2:first-child,.text>h3:first-child{margin-top:0}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:56px;align-items:start}
.two-col-flip{grid-template-columns:400px minmax(0,1fr)}
.two-col+.two-col{margin-top:48px}
.pic{margin:0}
.pic img{border-radius:22px;box-shadow:0 18px 40px rgba(15,31,61,.14)}
.pic figcaption{margin-top:10px;font-size:.85rem;color:var(--muted)}
.lead{font-size:1.12rem}
.block-night{background:linear-gradient(180deg,var(--night) 0%,var(--night-2) 100%);color:#d3dff0;position:relative;overflow:hidden}
.block-night::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1.5px),radial-gradient(rgba(255,255,255,.3) 1px,transparent 1.5px);background-size:120px 120px,70px 70px;background-position:0 0,35px 50px;opacity:.35;pointer-events:none}
.block-night .wrap{position:relative}
.block-night h2,.block-night h3{color:#fff}
.block-night h3{color:var(--gold)}
.block-night .lead{color:#e7eef8}
.block-night .pic figcaption{color:#9fb1cf}
.night-head{max-width:780px;margin-bottom:40px}
.block-ice{background:var(--ice)}
.block-snow{background:#fff}

/* comparison */
.compare-head{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:center;margin-bottom:28px}
.compare-head p{max-width:640px}
.pic-small img{border-radius:18px}
.table-box{overflow-x:auto;border-radius:18px;background:#fff;box-shadow:0 1px 0 var(--line),0 14px 36px rgba(15,31,61,.07)}
table{width:100%;min-width:560px;border-collapse:collapse;font-size:.97rem}
th,td{padding:12px 18px;text-align:left;border-bottom:1px solid var(--line)}
thead th{font-family:var(--head);font-weight:600;font-size:1.05rem}
.th-summer{background:var(--candy-soft);color:#c2356a}
.th-winter{background:var(--night);color:#fff}
tbody th{font-weight:600;color:var(--ink);width:24%}
tbody tr:last-child>*{border-bottom:0}
tr.diff>*{background:#fff6e2}
tr.diff th{box-shadow:inset 4px 0 0 var(--gold)}
.table-note{margin:12px 0 0!important;font-size:.9rem;color:var(--muted)}
.pick{margin-top:40px;max-width:860px;padding:28px 32px;border-radius:20px;background:linear-gradient(120deg,#fff,var(--ice));border:1px solid var(--line)}
.pick h3{margin-top:0}
.pick p:last-child{margin-bottom:0}

/* faq */
.faq-wrap{max-width:860px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{position:relative;padding:17px 42px 17px 0;cursor:pointer;list-style:none;font-weight:700;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:24px;width:9px;height:9px;border-right:2px solid var(--berry);border-bottom:2px solid var(--berry);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:28px}
.faq details p{margin:0 0 18px;padding-right:42px}

/* footer */
.foot{background:var(--night);color:#a9b8d2;font-size:.92rem}
.foot-row{display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:center;padding:32px 0}
.foot p{margin:0}
.foot-brand{font-family:var(--head);font-weight:600;font-size:1.12rem;color:#fff}
.foot-brand b{color:var(--gold)}
.foot-note{white-space:nowrap}
.up{position:fixed;right:18px;bottom:18px;z-index:30;width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:12px;background:var(--berry);color:#fff;box-shadow:0 8px 20px rgba(200,34,63,.3);cursor:pointer;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.up.is-on{opacity:1;visibility:visible}

@media (max-width:1000px){
  .two-col{grid-template-columns:minmax(0,1fr) 320px;gap:40px}
  .two-col-flip{grid-template-columns:320px minmax(0,1fr)}
  .opening-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:860px){
  .menu-toggle{display:flex}
  .menu{display:none;position:absolute;left:0;right:0;top:var(--bar);flex-direction:column;gap:0;margin:0;padding:6px 20px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(15,31,61,.08)}
  .menu.is-open{display:flex}
  .menu a{padding:12px 0;font-size:1rem;border-bottom:1px solid var(--line)}
  .menu a::after{display:none}
  .top-row{gap:12px}
  .play{order:3;padding:8px 20px}
  .two-col,.two-col-flip,.compare-head{grid-template-columns:1fr;gap:28px}
  .two-col-flip .pic{order:2}
  .pic,.pic-small{max-width:440px}
  .block{padding:56px 0}
  .foot-row{grid-template-columns:1fr;gap:10px}
}
@media (max-width:600px){
  .wrap{width:calc(100% - 32px)}
  .brand{font-size:1.05rem}
  .stage{padding-top:16px}
  .stage-frame{border-radius:18px}
  .stage-slide::after{display:none}
  .stage-slide figcaption{position:static;max-width:none;padding:16px 18px 44px;background:var(--night)}
  .stage-dots{right:auto;left:18px;bottom:18px}
  .tags{grid-template-columns:1fr}
  .pick{padding:22px 20px}
  table{min-width:0;font-size:.88rem}
  th,td{padding:10px}
  tbody th{width:30%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .stage-slide,.menu a::after,.play,.up,.faq summary::after{transition:none}
}

/* worked example */
.example{max-width:860px}
.run{list-style:none;margin:20px 0 22px;padding:0;display:grid;gap:12px}
.run li{padding:16px 20px;border-radius:14px;background:#fff;border-left:4px solid var(--berry);box-shadow:0 6px 18px rgba(15,31,61,.05)}
.run b{color:var(--ink)}