:root{
  --ink:#132b2a;--forest:#164a45;--forest-2:#0f3a36;--green:#1f756c;--mint:#dff2e9;--mint-2:#c7e8d9;
  --cream:#f6f2e9;--paper:#fffdf8;--coral:#ed795e;--coral-ink:#25130f;--orange:#f58245;
  --line:#dbe4df;--muted:#627370;--soft:#8fa39f;--white:#fff;
  --shadow:0 30px 80px rgba(20,55,51,.12),0 6px 18px rgba(20,55,51,.05);
  --radius:32px;--ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font:16px/1.6 'DM Sans',system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative}
body:before{content:"";position:fixed;z-index:-1;width:720px;height:720px;border-radius:50%;background:radial-gradient(circle,var(--mint) 0%,rgba(223,242,233,0) 68%);right:-260px;top:-260px;pointer-events:none}
body:after{content:"";position:fixed;z-index:-1;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,#fbe6dc 0%,rgba(251,230,220,0) 70%);left:-280px;bottom:-300px;pointer-events:none}
h1,h2,h3{font-family:Manrope,sans-serif;letter-spacing:-.03em;line-height:1.1;margin:0}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:10px}

/* header / footer */
.bk-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px clamp(16px,5vw,64px)}
.bk-logo img{display:block;height:44px;width:auto}
.bk-langs{display:flex;gap:4px;background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:999px;padding:4px;backdrop-filter:blur(10px)}
.bk-langs a{display:grid;place-items:center;min-width:40px;height:32px;padding:0 10px;border-radius:999px;font-weight:800;font-size:.78rem;letter-spacing:.06em;text-decoration:none;color:var(--muted);transition:.2s var(--ease)}
.bk-langs a:hover{color:var(--forest)}
.bk-langs a[aria-current]{background:var(--forest);color:#fff}
.bk-footer{margin-top:auto;padding:28px clamp(16px,5vw,64px) 34px;text-align:center;color:var(--muted);font-size:.86rem}
.bk-footer div{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.bk-footer a{font-weight:700;text-decoration:none;color:var(--forest)}
.bk-footer a:hover{color:var(--green)}
.bk-footer p{margin:8px auto 0;max-width:640px;font-size:.76rem;color:var(--soft)}
.bk-noscript{max-width:640px;margin:30px auto;text-align:center}

/* card */
.bk-shell{width:100%;max-width:1140px;margin:0 auto;padding:10px clamp(16px,4vw,28px) 24px}
.bk-card{display:grid;grid-template-columns:350px minmax(0,1fr);min-height:640px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}

/* aside */
.bk-aside{position:relative;display:flex;flex-direction:column;gap:26px;padding:38px 32px 32px;background:var(--forest);color:#fff;overflow:hidden}
.bk-aside:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(155,210,201,.28),rgba(155,210,201,0) 65%);right:-220px;top:-200px;pointer-events:none}
.bk-aside>*{position:relative}
.bk-host{display:flex;align-items:center;gap:16px}
.bk-avatar{width:76px;height:76px;border-radius:50%;object-fit:cover;object-position:center top;flex:none;box-shadow:0 0 0 3px rgba(223,242,233,.28),0 12px 26px rgba(0,0,0,.18);background:#2a5a55}
.bk-host h2{font-size:1.28rem;font-weight:800;letter-spacing:-.02em}
.bk-host p{margin:3px 0 0;color:#9bd2c9;font-size:.88rem;font-weight:600}
.bk-host .bk-langline{color:#c7d9d5;font-weight:500;font-size:.8rem;margin-top:2px}
.bk-switch{display:grid;gap:8px}
.bk-switch-label{font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#9bd2c9}
.bk-switch-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.bk-switch button{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:16px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.04);color:#fff;cursor:pointer;text-align:left;transition:.2s var(--ease)}
.bk-switch button img{width:30px;height:30px;border-radius:50%;object-fit:cover;object-position:center top;flex:none}
.bk-switch button span{display:block;font-weight:800;font-size:.9rem;line-height:1.15}
.bk-switch button small{display:block;font-size:.68rem;color:#c7d9d5;font-weight:600;line-height:1.2}
.bk-switch button:hover{border-color:rgba(255,255,255,.5)}
.bk-switch button[aria-pressed=true]{background:#fff;color:var(--forest);border-color:#fff}
.bk-switch button[aria-pressed=true] small{color:var(--green)}
.bk-divider{height:1px;background:rgba(255,255,255,.14)}
.bk-meeting .bk-kicker{font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#9bd2c9;margin-bottom:10px}
.bk-meeting h3{font-size:1.6rem;font-weight:800;margin-bottom:18px}
.bk-meta{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.bk-meta li{display:flex;gap:12px;align-items:flex-start;color:#dcebe7;font-size:.94rem;line-height:1.45}
.bk-meta svg{flex:none;width:20px;height:20px;margin-top:1px;color:#9bd2c9}
.bk-meta li.bk-picked{color:#fff;font-weight:700}
.bk-meta li.bk-picked svg{color:var(--orange)}
.bk-aside-foot{margin-top:auto;font-size:.84rem;color:#b9cbc8}
.bk-aside-foot a{color:#fff;font-weight:800;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.3)}

/* main */
.bk-main{padding:40px clamp(22px,4.2vw,56px) 44px;min-width:0}
.bk-steps{display:flex;gap:6px;list-style:none;margin:0 0 34px;padding:0;flex-wrap:wrap}
.bk-steps li{display:flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;letter-spacing:.04em;color:var(--soft)}
.bk-steps li:not(:last-child):after{content:"";width:26px;height:1px;background:var(--line);margin:0 4px}
.bk-steps i{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--line);font-style:normal;font-size:.72rem}
.bk-steps li.on{color:var(--forest)}
.bk-steps li.on i{background:var(--forest);border-color:var(--forest);color:#fff}
.bk-steps li.done{color:var(--green)}
.bk-steps li.done i{background:var(--mint);border-color:var(--mint);color:var(--green)}
.bk-eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.74rem;color:var(--green);margin:0 0 12px}
.bk-title{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;margin-bottom:26px;outline:none}
.bk-lead{color:var(--muted);margin:-12px 0 26px;max-width:560px}
.bk-view{animation:bk-in .35s var(--ease) both}
@keyframes bk-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* meeting types */
.bk-types{display:grid;gap:14px}
.bk-type{display:grid;grid-template-columns:78px minmax(0,1fr) 24px;align-items:center;gap:20px;width:100%;padding:20px 22px;border:1px solid var(--line);border-radius:24px;background:#fff;text-align:left;cursor:pointer;transition:.25s var(--ease)}
.bk-type:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:0 16px 36px rgba(20,55,51,.09)}
.bk-dur{display:grid;place-items:center;align-content:center;width:78px;height:78px;border-radius:22px;background:var(--mint);color:var(--forest)}
.bk-dur b{font:800 1.7rem/1 Manrope}
.bk-dur small{font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-top:3px}
.bk-type-name{display:block;font:800 1.18rem/1.2 Manrope,sans-serif;letter-spacing:-.02em;margin-bottom:5px}
.bk-type-desc{display:block;color:var(--muted);font-size:.93rem;line-height:1.5}
.bk-type svg{width:22px;height:22px;color:var(--green);transition:transform .25s var(--ease)}
.bk-type:hover svg{transform:translateX(4px)}

/* date & time */
.bk-picker{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:34px;align-items:start}
.bk-cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.bk-cal-head h3{font-size:1.15rem;font-weight:800}
.bk-nav{display:flex;gap:6px}
.bk-nav button{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;cursor:pointer;transition:.2s var(--ease)}
.bk-nav button:hover:not(:disabled){border-color:var(--forest)}
.bk-nav button:disabled{opacity:.35;cursor:default}
.bk-nav svg{width:18px;height:18px}
.bk-week,.bk-days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}
.bk-week span{text-align:center;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--soft);padding:4px 0 8px}
.bk-day{position:relative;display:grid;place-items:center;aspect-ratio:1;max-height:54px;width:100%;margin:auto;border:0;border-radius:50%;background:transparent;color:#b3c2be;font-weight:600;font-size:.95rem;cursor:default}
.bk-day.open{background:var(--mint);color:var(--forest);font-weight:800;cursor:pointer;transition:.2s var(--ease)}
.bk-day.open:hover{background:var(--mint-2)}
.bk-day.sel{background:var(--forest);color:#fff}
.bk-day.today:after{content:"";position:absolute;bottom:7px;width:4px;height:4px;border-radius:50%;background:currentColor}
.bk-tz{display:flex;align-items:center;gap:8px;margin-top:18px;color:var(--muted);font-size:.85rem}
.bk-tz svg{width:16px;height:16px}
.bk-times h3{font-size:1rem;font-weight:800;margin:6px 0 14px;letter-spacing:-.01em}
.bk-times-list{display:grid;gap:8px;max-height:420px;overflow:auto;padding:2px 4px 2px 2px;scrollbar-width:thin}
.bk-time{height:50px;width:100%;border:1px solid #b9d6cc;border-radius:14px;background:#fff;color:var(--forest);font-weight:800;font-size:.97rem;cursor:pointer;transition:.2s var(--ease)}
.bk-time:hover{border-color:var(--forest);box-shadow:inset 0 0 0 1px var(--forest)}
.bk-time-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px;animation:bk-in .25s var(--ease) both}
.bk-time-pair .bk-time{background:var(--ink);border-color:var(--ink);color:#fff;cursor:default;box-shadow:none}
.bk-hint{color:var(--muted);font-size:.93rem;margin:6px 0 0}
.bk-empty{padding:26px;border-radius:22px;background:var(--cream);color:var(--ink)}
.bk-skel{height:50px;border-radius:14px;background:linear-gradient(90deg,#eef3f0 25%,#f7faf8 50%,#eef3f0 75%);background-size:200% 100%;animation:bk-shimmer 1.2s infinite}
.bk-skel.cal{height:300px;border-radius:22px}
@keyframes bk-shimmer{to{background-position:-200% 0}}

/* buttons */
.bk-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:999px;border:1px solid var(--coral);background:var(--coral);color:var(--coral-ink);font-weight:800;font-size:1rem;text-decoration:none;cursor:pointer;transition:.2s var(--ease)}
.bk-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 28px rgba(237,121,94,.3)}
.bk-btn:disabled{opacity:.6;cursor:progress}
.bk-btn.dark{background:var(--forest);border-color:var(--forest);color:#fff}
.bk-btn.dark:hover:not(:disabled){box-shadow:0 12px 28px rgba(22,74,69,.25)}
.bk-btn.ghost{background:transparent;border-color:var(--forest);color:var(--forest)}
.bk-btn.ghost:hover:not(:disabled){box-shadow:none;background:#f3faf6}
.bk-btn.danger{background:transparent;border-color:#e3b2a5;color:#a8412a}
.bk-btn.danger:hover:not(:disabled){background:#fff4ef;box-shadow:none}
.bk-btn svg{width:18px;height:18px}
.bk-link{border:0;background:none;padding:0;color:var(--green);font-weight:800;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.bk-back{display:inline-flex;align-items:center;gap:6px;border:0;background:none;padding:0;margin:0 0 22px;color:var(--muted);font-weight:700;font-size:.9rem;cursor:pointer}
.bk-back:hover{color:var(--forest)}
.bk-back svg{width:16px;height:16px}
.bk-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:28px}

/* details form */
.bk-chosen{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding:16px 20px;margin-bottom:26px;border-radius:20px;background:var(--mint);color:var(--forest);font-weight:700}
.bk-chosen svg{width:18px;height:18px;vertical-align:-3px;margin-right:6px}
.bk-form{display:grid;grid-template-columns:1fr 1fr;gap:20px 18px;align-items:start}
.bk-field{display:grid;gap:7px;min-width:0;align-content:start}
fieldset.bk-field{border:0;padding:0;margin:0}
.bk-field.full{grid-column:1/-1}
.bk-field label,.bk-legend{font-weight:700;font-size:.93rem}
.bk-field label small,.bk-legend small{font-weight:500;color:var(--soft);margin-left:6px}
.bk-field input,.bk-field textarea,.bk-field select{width:100%;padding:14px 16px;border:1px solid #bac9c5;border-radius:14px;background:#fff;font:inherit;color:var(--ink);transition:border-color .2s,box-shadow .2s}
.bk-field select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(31,117,108,.14)}
.bk-field textarea{min-height:108px;resize:vertical}
.bk-field input:focus,.bk-field textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(31,117,108,.14)}
.bk-field .bk-help{font-size:.82rem;color:var(--muted)}
.bk-formats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;border:0;padding:0;margin:0;min-width:0}
.bk-legend{padding:0;margin-bottom:9px}
.bk-format{position:relative;display:flex;gap:12px;align-items:center;padding:15px 16px;border:1px solid var(--line);border-radius:18px;cursor:pointer;transition:.2s var(--ease)}
.bk-format input{position:absolute;opacity:0;pointer-events:none}
.bk-format svg{width:24px;height:24px;color:var(--green);flex:none}
.bk-format b{display:block;font-size:.95rem}
.bk-format small{display:block;color:var(--muted);font-size:.8rem;line-height:1.3}
.bk-format:has(input:checked){border-color:var(--forest);box-shadow:inset 0 0 0 1px var(--forest);background:#f3faf6}
.bk-format:has(input:focus-visible){outline:3px solid var(--orange);outline-offset:2px}
.bk-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.bk-privacy{grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--muted);margin:0}
.bk-privacy svg{width:16px;height:16px;flex:none;margin-top:3px;color:var(--green)}
.bk-error{grid-column:1/-1;border-left:4px solid var(--coral);background:#fff4ef;padding:14px 18px;border-radius:0 14px 14px 0;color:#7a2d1c;font-weight:600;margin:0}
.bk-notice{border-left:4px solid var(--green);background:#f3faf6;padding:14px 18px;border-radius:0 14px 14px 0;color:var(--forest);font-weight:600;margin:0 0 24px}

/* confirmation & manage */
.bk-done{text-align:center;max-width:560px;margin:10px auto 0}
.bk-check{display:grid;place-items:center;width:92px;height:92px;margin:0 auto 26px;border-radius:50%;background:var(--mint);color:var(--forest)}
.bk-check svg{width:44px;height:44px}
.bk-check path{stroke-dasharray:40;stroke-dashoffset:40;animation:bk-draw .6s .2s var(--ease) forwards}
.bk-check.muted{background:#fff0eb;color:#a8412a}
@keyframes bk-draw{to{stroke-dashoffset:0}}
.bk-done .bk-title{margin-bottom:14px}
.bk-done>p{color:var(--muted)}
.bk-summary{margin:26px 0 8px;padding:8px 24px;border-radius:22px;background:var(--cream);text-align:left}
.bk-summary div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:14px;padding:13px 0;border-bottom:1px solid #e7e0d0}
.bk-summary div:last-child{border-bottom:0}
.bk-summary dt{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--green);padding-top:3px}
.bk-summary dd{margin:0;font-weight:700;overflow-wrap:anywhere}
.bk-summary dd a{color:var(--green)}
.bk-done .bk-actions{justify-content:center}
.bk-cancel-box{margin-top:22px;padding:22px;border-radius:22px;border:1px solid #f0cfc5;background:#fffaf7;text-align:left}
.bk-cancel-box .bk-field{margin-bottom:16px}

@media (max-width:980px){
  .bk-card{grid-template-columns:1fr}
  .bk-aside{padding:26px 22px;gap:18px}
  .bk-aside:before{display:none}
  .bk-meeting h3{font-size:1.3rem;margin-bottom:12px}
  .bk-aside-foot{display:none}
  .bk-avatar{width:60px;height:60px}
}
@media (max-width:760px){
  .bk-picker{grid-template-columns:1fr;gap:26px}
  .bk-times-list{max-height:none}
  .bk-form{grid-template-columns:1fr}
  .bk-main{padding:28px 18px 32px}
  .bk-steps{margin-bottom:24px}
  .bk-steps li:not(:last-child):after{width:12px}
  .bk-type{grid-template-columns:62px minmax(0,1fr);gap:16px;padding:16px}
  .bk-type>svg{display:none}
  .bk-dur{width:62px;height:62px;border-radius:18px}
  .bk-dur b{font-size:1.35rem}
  .bk-summary{padding:6px 16px}
  .bk-summary div{grid-template-columns:1fr;gap:2px}
  .bk-actions .bk-btn{width:100%}
  .bk-header{padding:16px}
  .bk-logo img{height:36px}
  .bk-shell{padding:4px 12px 16px}
  .bk-card{border-radius:24px}
}
@media (prefers-reduced-motion:reduce){
  *,*:before,*:after{animation:none!important;transition:none!important}
  .bk-check path{stroke-dashoffset:0}
}