/* Collection: season chapters of arched "windows" with the cut-out pieces stepping out of them.
   Shared by index.html and collection/<slug>.html. Season tints come from --s1/--s2 on a parent. */
.season-spring{--s1:#5a2d3a;--s2:#e9b7c0;--s3:#2a161c}
.season-summer{--s1:#5c4419;--s2:#f0cf7a;--s3:#2a1f0c}
.season-autumn{--s1:#5a2a14;--s2:#e08a4a;--s3:#28140b}
.season-winter{--s1:#26303f;--s2:#b9c8dc;--s3:#11161e}

/* ---- section + season nav ---- */
.coll-head{text-align:center;padding-top:clamp(64px,9vw,130px);padding-bottom:10px}
.coll-head h3{font-family:var(--serif);font-weight:300;font-size:clamp(40px,5.6vw,78px);line-height:1;margin-top:14px}
.coll-head p{color:var(--ink2);max-width:520px;margin:16px auto 0;font-size:15px}
.snav{position:sticky;top:102px;z-index:40;display:flex;justify-content:center;gap:clamp(4px,1.4vw,14px);padding:14px 0;margin-top:26px;background:linear-gradient(180deg,var(--bg) 70%,rgba(7,6,7,0))}
.snav a{font-family:var(--script);font-size:clamp(26px,3vw,38px);line-height:1;color:var(--ink3);padding:6px clamp(8px,1.6vw,18px);transition:color .35s;position:relative}
.snav a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:1px;background:var(--gold);transition:width .4s,left .4s}
.snav a:hover{color:var(--ink2)}
.snav a.on{color:var(--gold2)}
.snav a.on::after{width:60%;left:20%}
@media (max-width:900px){.snav{top:72px}}

.chapter{position:relative;overflow-x:clip;padding:clamp(40px,6vw,80px) 0 clamp(30px,4vw,60px);scroll-margin-top:150px}
.chapter::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 50% at 50% 30%,color-mix(in srgb,var(--s1) 38%,transparent),transparent 70%)}
.ch-head{position:relative;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(40px,5vw,70px)}
.ch-head .num{margin-bottom:14px;font-family:var(--serif);font-size:13px;letter-spacing:.3em;color:var(--gold)}
.ch-head .script{font-family:var(--script);font-size:clamp(64px,9vw,128px);line-height:.9;color:var(--s2);text-shadow:0 0 50px color-mix(in srgb,var(--s2) 25%,transparent)}
.ch-head p{color:var(--ink2);font-size:14px;max-width:300px;text-align:right}
@media (max-width:700px){.ch-head{flex-direction:column;align-items:flex-start}.ch-head p{text-align:left}}

/* ---- arch cards ---- */
.arches{position:relative;display:grid;grid-template-columns:repeat(var(--n,5),1fr);gap:clamp(14px,2vw,30px) clamp(12px,1.8vw,26px)}
@media (max-width:1100px){.arches{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.arches{grid-template-columns:repeat(2,1fr);gap:46px 12px}}
.arch{display:block;position:relative;padding-top:16%}
.arch .win{position:relative;aspect-ratio:3/4.4}
.arch .frame{position:absolute;inset:0;border-radius:999px 999px 6px 6px;overflow:hidden;
  background:radial-gradient(80% 60% at 50% 45%,color-mix(in srgb,var(--s2) 30%,var(--s1)),var(--s3) 100%);
  box-shadow:inset 0 0 0 1px rgba(201,164,92,.38),inset 0 0 0 6px rgba(7,6,7,.35),inset 0 0 0 7px rgba(201,164,92,.22);transition:box-shadow .5s}
.arch .frame::after{content:"";position:absolute;left:10%;right:10%;bottom:5%;height:9%;border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.55),transparent)}
.arch .fig{position:absolute;left:-12%;right:-12%;bottom:0;height:114%;display:flex;align-items:flex-end;justify-content:center;pointer-events:none}
.arch .fig img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;object-position:bottom center;
  filter:drop-shadow(0 18px 24px rgba(0,0,0,.45));transform-origin:50% 100%;transition:transform .9s cubic-bezier(.2,.7,.2,1),filter .6s}
.arch:hover .fig img,.arch:focus-visible .fig img{transform:translateY(-2%) scale(1.045);filter:drop-shadow(0 26px 30px rgba(0,0,0,.55))}
.arch:hover .frame{box-shadow:inset 0 0 0 1px rgba(230,200,134,.85),inset 0 0 0 6px rgba(7,6,7,.35),inset 0 0 0 7px rgba(230,200,134,.45),0 0 60px -10px color-mix(in srgb,var(--s2) 40%,transparent)}
.arch .cap{text-align:center;padding-top:16px}
.arch .cap i{font-style:normal;font-family:var(--serif);font-size:12px;letter-spacing:.24em;color:var(--gold)}
.arch .cap b{display:block;margin-top:6px;font-weight:400;font-size:12px;letter-spacing:.2em;text-transform:uppercase;line-height:1.5}
.arch .cap span{display:inline-block;margin-top:8px;font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink3);border-bottom:1px solid transparent;transition:color .3s,border-color .3s}
.arch:hover .cap span{color:var(--gold2);border-color:rgba(201,164,92,.6)}
@media (max-width:640px){.arch .cap b{font-size:10.5px;letter-spacing:.14em}}