:root{--bg:#0d0f12;--surface:#16191e;--line:#272b32;--ink:#eceae4;--muted:#9ba1a9;--accent:#86adf0;--err:#f0a0a0;--star:226,232,245;--glow:150,185,245;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
/* site header, same as the home page */
#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.nav,main{position:relative;z-index:1}
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{max-width:1040px;margin:0 auto;padding-inline:20px;display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
.mark{white-space:nowrap;font:700 20px/1 "Playfair Display",Georgia,serif;text-decoration:none;letter-spacing:-.01em;color:var(--ink)}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav ul a{font-size:14px;color:var(--muted);text-decoration:none}
.nav ul a:hover{color:var(--ink)}
.nav-btn{display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border-radius:10px;border:1.5px solid var(--line);color:var(--ink);font:600 14px/1 Inter,system-ui,sans-serif;text-decoration:none}
.nav-btn:hover{border-color:var(--accent)}
@media (max-width:860px){.nav ul{display:none}}
.bk-alt{margin:10px 0 0;color:var(--muted);font-size:14.5px}
.bk-alt button,.bk-alt a{background:none;border:0;padding:0;color:var(--accent);font:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.bk-wrap{max-width:1040px;margin:0 auto;padding:28px 20px 64px}
.bk-head{display:flex;gap:18px;align-items:center;margin:8px 0 28px}
.bk-head img{width:64px;height:64px;border-radius:50%;object-fit:cover;object-position:50% 20%;flex:none}
h1{font:800 clamp(34px,6vw,54px)/1.05 "Playfair Display",Georgia,serif;margin:0}
.bk-sub{color:var(--muted);margin:8px 0 0}
.bk-card{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:0;background:color-mix(in srgb,var(--surface) 90%,transparent);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.bk-pick,.bk-form{padding:24px;min-width:0}
.bk-form{border-left:1px solid var(--line);display:grid;gap:14px;align-content:start}
.bk-label{font-size:12.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.bk-days{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:14px;scrollbar-width:thin}
.bk-dayhead{grid-column:1/-1;margin:14px 0 2px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);font-size:18px;font-weight:600}
.bk-part{grid-column:1/-1;margin:6px 0 0;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted,#8b8d91)}
.bk-times{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:8px}
.bk-slot{flex:none;padding:10px 12px;border-radius:10px;border:1px solid #333944;background:#111418;color:var(--ink);font:500 14.5px/1.2 Inter,system-ui,sans-serif;cursor:pointer;text-align:center}
.bk-day{min-width:72px}.bk-day b{display:block;font-size:11.5px;font-weight:600;opacity:.75;margin-bottom:2px}
.bk-slot:hover{border-color:var(--accent)}
.bk-slot[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#0d0f12}
.bk-muted{color:var(--muted);font-size:14px;margin:12px 0 0}
label{display:grid;gap:6px;font-size:13px;font-weight:600;color:var(--muted)}
input,textarea{width:100%;padding:11px 13px;border-radius:10px;border:1px solid #333944;background:#111418;color:var(--ink);font:15px/1.4 Inter,system-ui,sans-serif;resize:vertical}
input:focus,textarea:focus,.bk-slot:focus-visible,.bk-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.bk-chosen{margin:0;padding:12px 14px;border-radius:10px;background:#111418;border:1px dashed #333944;color:var(--muted);font-size:14.5px}
.bk-chosen.on{border-style:solid;border-color:var(--accent);color:var(--ink)}
.bk-btn{min-height:46px;padding:0 20px;border-radius:11px;border:0;background:var(--ink);color:#0d0f12;font:600 15px/1 Inter,system-ui,sans-serif;cursor:pointer}
.bk-btn.g{background:transparent;color:var(--ink);border:1px solid #3a404a}
.bk-btn.x{background:transparent;color:var(--err);border:1px solid #5a3a3e}
.bk-btn:disabled{opacity:.5;cursor:default}
.bk-err{color:var(--err);font-size:14px;min-height:1em;margin:0}
.bk-done{background:color-mix(in srgb,var(--surface) 90%,transparent);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:18px;padding:28px;display:grid;gap:12px;max-width:620px}
.bk-done h2{font:800 30px/1.1 "Playfair Display",Georgia,serif;margin:0}
.bk-done p{margin:0}
.bk-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.bk-row a.bk-btn{display:inline-flex;align-items:center;text-decoration:none}
[hidden]{display:none!important}
@media (max-width:760px){.bk-card{grid-template-columns:minmax(0,1fr)}.bk-form{border-left:0;border-top:1px solid var(--line)}.bk-pick,.bk-form{padding:18px}}