/* /book/ — native booker (host | calendar | slots), built on the kit tokens. Scoped to .bk */
.bk{padding-top:clamp(110px,11vw,150px)}
.bk-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(28px,3.4vw,44px)}
.bk-head .k-pill{margin-bottom:22px}
.bk-head h1{font-size:clamp(40px,5vw,72px);text-wrap:balance}
.bk-card{scroll-margin-top:96px}
.bk h2[tabindex="-1"]:focus{outline:none}
.bk-head p{margin-top:18px;max-width:560px}
.bk-lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;gap:2px;flex:none}
.bk-lang button,.bk-seg button{font:500 13px/1 var(--sans);color:var(--fg-3);background:none;border:0;border-radius:999px;padding:8px 12px;cursor:pointer;transition:color .2s,background .2s}
.bk-lang button:hover,.bk-seg button:hover{color:var(--fg)}
.bk-lang button[aria-pressed="true"],.bk-seg button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}

/* card shell */
.bk-card{display:grid;grid-template-columns:300px minmax(0,1fr) 280px;border:1px solid var(--line);border-radius:var(--r-l);background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));overflow:hidden;min-height:560px;position:relative}
html.light .bk-card{background:#fff;box-shadow:0 30px 80px -40px rgba(0,0,0,.18)}
.bk-card>section{padding:clamp(22px,2.4vw,32px);min-width:0}
.bk-card>section+section{border-left:1px solid var(--line)}
.bk-card[data-step="form"],.bk-card[data-step="done"],.bk-card[data-step="fail"]{grid-template-columns:300px minmax(0,1fr)}
.bk-card[data-step="form"] .bk-cal,.bk-card[data-step="form"] .bk-slots,
.bk-card[data-step="done"] .bk-cal,.bk-card[data-step="done"] .bk-slots,
.bk-card[data-step="fail"] .bk-cal,.bk-card[data-step="fail"] .bk-slots{display:none}
.bk-card[data-step="pick"] .bk-form,.bk-card[data-step="pick"] .bk-done,
.bk-card[data-step="form"] .bk-done,.bk-card[data-step="done"] .bk-form,
.bk-card[data-step="fail"] .bk-form,.bk-card[data-step="fail"] .bk-done{display:none}
.bk-card[data-step="fail"] .bk-down{display:block}
.bk-down{display:none}

/* host column */
.bk-host{display:flex;flex-direction:column;gap:18px}
.bk-ava{width:64px;height:64px;border-radius:50%;object-fit:cover;background:var(--card-2);border:1px solid var(--line)}
.bk-ava.k-mark{border-radius:50%;width:64px;height:64px}
.bk-ava.k-mark svg{width:30px;height:27px}
.bk-who{font-size:15px;color:var(--fg-3)}
.bk-title{font-size:24px;font-weight:500;letter-spacing:-.03em;line-height:1.2;color:var(--fg);margin-top:4px}
.bk-what{font-size:15px;line-height:1.6;color:var(--fg-2)}
.bk-facts{list-style:none;display:grid;gap:12px;font-size:15px;color:var(--fg-2)}
.bk-facts li{display:flex;gap:12px;align-items:flex-start;line-height:1.4}
.bk-facts svg{width:18px;height:18px;flex:none;margin-top:1px;color:var(--fg)}
.bk-facts li[hidden]{display:none}
.bk-facts .on{color:var(--fg);font-weight:500}
.bk-hosttz{font-size:13px;color:var(--fg-3);margin-top:auto;line-height:1.5}
.bk-back{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;font:500 14px var(--sans);color:var(--fg-2);background:none;border:1px solid var(--line);border-radius:999px;padding:8px 14px 8px 10px;cursor:pointer}
.bk-back:hover{color:var(--fg);border-color:var(--line-2)}
.bk-back[hidden]{display:none}

/* calendar column */
.bk-h{font-size:18px;font-weight:500;letter-spacing:-.02em;color:var(--fg)}
.bk-calhead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:22px 0 14px}
.bk-month{font-size:16px;font-weight:500;color:var(--fg)}
.bk-nav{display:flex;gap:6px}
.bk-nav button{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:none;color:var(--fg);display:grid;place-items:center;cursor:pointer;transition:border-color .2s,background .2s}
.bk-nav button:hover:not(:disabled){border-color:var(--fg)}
.bk-nav button:disabled{color:var(--fg-4);cursor:default;border-color:transparent}
.bk-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;text-align:center}
.bk-dow{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--fg-3);padding:6px 0 8px}
.bk-day{position:relative;aspect-ratio:1;max-width:56px;width:100%;margin:0 auto;border-radius:50%;border:1px solid transparent;font:500 15px var(--sans);color:var(--fg);background:rgba(255,255,255,.06);cursor:pointer;transition:background .2s,border-color .2s,color .2s,transform .25s var(--ease)}
html.light .bk-day{background:rgba(0,0,0,.05)}
.bk-day:hover:not(:disabled){border-color:var(--fg)}
.bk-day:disabled{background:none;color:var(--fg-4);font-weight:400;cursor:default}
.bk-day[aria-pressed="true"],html.light .bk-day[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
html.light .bk-day:disabled{background:none}
.bk-day.today::after{content:"";position:absolute;left:50%;bottom:7px;width:4px;height:4px;margin-left:-2px;border-radius:50%;background:currentColor}
.bk-day.pad{visibility:hidden}
.bk-tz{margin-top:22px;display:grid;gap:8px}
.bk-tz label{font-size:13px;color:var(--fg-3)}
.bk-select{position:relative}
.bk-select select{width:100%;appearance:none;-webkit-appearance:none;font:500 14px var(--sans);color:var(--fg);background:transparent;border:1px solid var(--line);border-radius:12px;padding:12px 40px 12px 14px;cursor:pointer}
.bk-select select:hover{border-color:var(--line-2)}
.bk-select select option{background:var(--bg);color:var(--fg)}
.bk-select::after{content:"";position:absolute;right:16px;top:50%;width:7px;height:7px;border-right:1.5px solid var(--fg-3);border-bottom:1.5px solid var(--fg-3);transform:translateY(-70%) rotate(45deg);pointer-events:none}

/* slots column */
.bk-slots{display:flex;flex-direction:column;min-height:0}
.bk-slothead{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:18px}
.bk-slothead .bk-h{font-size:16px}
.bk-seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;gap:2px;flex:none}
.bk-seg button{padding:6px 10px;font-size:12px}
.bk-list{list-style:none;display:grid;gap:8px;overflow-y:auto;max-height:470px;padding:2px;margin:-2px;scrollbar-width:thin}
.bk-list li{display:flex;gap:8px}
.bk-slot{flex:1;min-height:48px;border-radius:12px;border:1px solid var(--line-2);background:none;color:var(--fg);font:500 15px var(--sans);cursor:pointer;transition:border-color .2s,background .2s,color .2s,flex .3s var(--ease)}
.bk-slot:hover{border-color:var(--fg)}
.bk-slot[aria-pressed="true"]{background:var(--card-2);border-color:var(--card-2);color:var(--fg-2)}
.bk-next{display:none;flex:1;min-height:48px;border-radius:12px;border:0;background:var(--fg);color:var(--bg);font:600 15px var(--sans);cursor:pointer;animation:bkIn .3s var(--ease)}
.bk-list li.on .bk-next{display:block}
@keyframes bkIn{from{opacity:0;transform:translateX(8px)}to{opacity:1;transform:none}}
.bk-empty{font-size:15px;line-height:1.6;color:var(--fg-3)}
.bk-empty a{color:var(--fg);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2)}

/* skeleton */
.bk-sk{border-radius:12px;background:linear-gradient(90deg,var(--card) 0,var(--card-2) 50%,var(--card) 100%);background-size:200% 100%;animation:bkSk 1.4s linear infinite}
@keyframes bkSk{from{background-position:200% 0}to{background-position:-200% 0}}

/* form */
.bk-form,.bk-done,.bk-down{max-width:620px}
.bk-form h2,.bk-done h2,.bk-down h2{font-size:clamp(24px,2.4vw,30px);font-weight:500;letter-spacing:-.03em;line-height:1.15;color:var(--fg)}
.bk-sub{margin-top:10px;font-size:15px;color:var(--fg-2);line-height:1.55}
.bk-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.bk-f{display:grid;gap:8px}
.bk-f.full{grid-column:1/-1}
.bk-f label{font-size:14px;color:var(--fg-2)}
.bk-f label span{color:var(--fg-3)}
.bk-f label b{font-weight:500;color:var(--fg)}
.bk-f input,.bk-f textarea{width:100%;font:400 16px/1.4 var(--sans);color:var(--fg);background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:13px 14px;transition:border-color .2s,background .2s}
html.light .bk-f input,html.light .bk-f textarea{background:var(--bg-2)}
.bk-f textarea{min-height:120px;resize:vertical}
.bk-f input:hover,.bk-f textarea:hover{border-color:var(--line-2)}
.bk-f input:focus,.bk-f textarea:focus{outline:none;border-color:var(--fg)}
.bk-f input:focus-visible,.bk-f textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.bk-f [aria-invalid="true"]{border-color:#ff5a5a}
.bk-err{font-size:13px;color:#ff7a7a;min-height:0}
html.light .bk-err{color:#c62828}
.bk-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.bk-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:24px}
.bk-actions .k-btn[disabled]{opacity:.6;cursor:progress;transform:none}
.bk-note{font-size:13px;color:var(--fg-3);line-height:1.5}

/* done / fail */
.bk-ok{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--fg);color:var(--bg);margin-bottom:22px}
.bk-ok.warn{background:none;border:1px solid var(--line-2);color:var(--fg)}
.bk-when{margin-top:22px;border:1px solid var(--line);border-radius:var(--r-s);padding:18px 20px;display:grid;gap:6px}
.bk-when b{font-size:18px;font-weight:500;color:var(--fg);letter-spacing:-.01em}
.bk-when span{font-size:14px;color:var(--fg-3)}

.bk-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--fg-3)}
.bk-foot a{color:var(--fg-2);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2)}
.bk-foot a:hover{color:var(--fg)}
.bk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* responsive */
@media(max-width:1100px){
  .bk-card{grid-template-columns:260px minmax(0,1fr) 240px}
  .bk-card[data-step="form"],.bk-card[data-step="done"],.bk-card[data-step="fail"]{grid-template-columns:260px minmax(0,1fr)}
}
@media(max-width:900px){
  .bk-head{flex-direction:column;align-items:flex-start}
  .bk-card,.bk-card[data-step="form"],.bk-card[data-step="done"],.bk-card[data-step="fail"]{grid-template-columns:minmax(0,1fr);min-height:0}
  .bk-card>section+section{border-left:0;border-top:1px solid var(--line)}
  .bk-host{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:16px;row-gap:14px;align-items:center}
  .bk-host>.bk-ava{grid-row:span 1}
  .bk-host>:not(.bk-ava):not(.bk-id){grid-column:1/-1}
  .bk-hosttz{margin-top:0}
  .bk-host>.bk-back{justify-self:start}
  .bk-list{max-height:none;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .bk-list li.on{grid-column:1/-1}
}
@media(max-width:560px){
  .bk-card>section{padding:20px 16px}
  .bk-fields{grid-template-columns:1fr}
  .bk-grid{gap:4px}
  .bk-day{font-size:14px}
  .bk-day.today::after{bottom:4px}
  .bk-list{grid-template-columns:1fr 1fr}
  .bk-title{font-size:21px}
  .bk-actions .k-btn{flex:1 1 auto}
}