:root{
  --canvas:#F5F6F8; --surface:#FFFFFF; --surface-hi:#F0F2F5;
  --line:#E4E7EB; --line-hi:#CDD3DA;
  --text:#0F1115; --muted:#4A5058; --faint:#8A9099;
  --accent:#2F6FB5; --accent-ink:#1F5A9C; --danger:#C0392B; --ok:#1B8A4B;
  --r:12px; --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
/* Author display rules below (.pbody, .app, .times ...) outrank the browser's
   own [hidden] rule, so hiding by attribute silently fails without this. */
[hidden]{display:none!important}
body{margin:0;background:var(--canvas);color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
svg{width:15px;height:15px;flex:0 0 auto}

.back{display:inline-block;padding:22px 0 0 22px;font-size:13px;font-weight:600;
  color:var(--faint);text-decoration:none;transition:color .2s var(--ease)}
.back:hover{color:var(--text)}

/* Narrow by default (mobile), wide on desktop. */
.shell{max-width:560px;margin:0 auto;padding:18px 18px 72px}
@media(min-width:900px){ .shell{max-width:1120px;padding:28px 24px 80px} }

.app{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:0 1px 2px rgba(15,17,21,.04),0 14px 34px -18px rgba(15,17,21,.25)}
@media(min-width:900px){
  .app{display:grid;grid-template-columns:296px 1fr;min-height:620px}
}

/* ── Left panel ─────────────────────────────────────────── */
.info{padding:26px 24px;border-bottom:1px solid var(--line)}
@media(min-width:900px){ .info{border-bottom:0;border-right:1px solid var(--line)} }
.avatar{border-radius:50%;object-fit:cover;object-position:50% 30%;margin-bottom:12px}
.who{margin:0;font-size:13px;font-weight:600;color:var(--faint)}
.info h1{margin:2px 0 16px;font-size:23px;font-weight:800;letter-spacing:-.025em}
.meta{margin:0 0 22px;padding:0;list-style:none}
.meta li{display:flex;align-items:center;gap:9px;margin-bottom:8px;
  font-size:14px;font-weight:500;color:var(--muted)}
.meta svg{color:var(--faint)}
.controls{padding-top:20px;border-top:1px solid var(--line)}

/* While the details form is open on a phone, the selectors and meta list are
   dead weight — the chosen summary already restates them — and pushing the
   form below the fold is the whole complaint. Keep them on desktop, where
   there is room and they sit beside the form rather than above it. */
@media(max-width:899px){
  .app.booking .info{padding:18px 20px}
  .app.booking .controls,
  .app.booking .meta,
  .app.booking .avatar{display:none}
  .app.booking .info h1{margin-bottom:0;font-size:19px}
}

.field{margin-bottom:13px}
.field label{display:block;margin-bottom:6px;font-size:12.5px;font-weight:600;color:var(--muted)}
.field label em{font-style:normal;font-weight:500;color:var(--faint);font-size:11.5px}
select,input,textarea{width:100%;padding:10px 12px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r);color:var(--text);
  font:inherit;font-size:14.5px;transition:border-color .2s var(--ease)}
select:focus,input:focus,textarea:focus{outline:none;border-color:var(--accent)}
input[aria-invalid="true"]{border-color:var(--danger)}
textarea{resize:vertical}

/* ── Right panel ────────────────────────────────────────── */
.panel{display:flex;flex-direction:column;min-width:0}
.ptop{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 22px 14px}
/* The month label, view switcher and arrows steer the picker. While the
   details form is open there is no picker to steer, so they are noise. */
.app.booking .ptop{display:none}
.app.booking #form{padding-top:20px}
.ptop h2{margin:0;font-size:15.5px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.ptools{display:flex;align-items:center;gap:8px}
.views{display:flex;gap:2px;padding:2px;background:var(--canvas);
  border:1px solid var(--line);border-radius:10px}
.views button{width:30px;height:26px;display:grid;place-items:center;background:none;
  border:0;border-radius:7px;color:var(--faint);cursor:pointer;transition:all .18s var(--ease)}
.views button:hover{color:var(--text)}
.views button[aria-pressed="true"]{background:var(--surface-hi);color:var(--text)}
.mnav{display:flex;gap:5px}
.mnav button{width:30px;height:30px;display:grid;place-items:center;background:var(--canvas);
  border:1px solid var(--line);border-radius:9px;color:var(--muted);font:inherit;font-size:15px;
  cursor:pointer;transition:all .18s var(--ease)}
.mnav button:hover:not(:disabled){background:var(--surface-hi);color:var(--text);border-color:var(--line-hi)}
.mnav button:disabled{opacity:.28;cursor:not-allowed}

.pbody{display:block;padding:0 22px 24px;min-width:0}
.pbody.week{display:block}
@media(min-width:900px){
  .pbody.month{display:grid;grid-template-columns:1fr 208px;gap:22px;align-items:start}
}
.loading,.none{margin:0;font-size:14px;color:var(--faint)}

/* month grid */
.dow,.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.dow{margin-bottom:7px}
.dow span{text-align:center;font-size:10.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--faint)}
.grid button,.grid .pad{aspect-ratio:1/1;display:grid;place-items:center;position:relative;
  border-radius:10px;font:inherit;font-size:14px;font-weight:550}
.grid .pad{background:none}
.grid button{background:var(--canvas);border:1px solid var(--line);color:var(--text);
  cursor:pointer;transition:all .18s var(--ease)}
.grid button:hover:not(:disabled){background:var(--surface-hi);border-color:var(--line-hi)}
.grid button:disabled{background:none;border-color:transparent;color:var(--faint);opacity:.4;cursor:not-allowed}
.grid button[aria-pressed="true"]{background:var(--text);color:#fff;border-color:transparent}
.grid button .dot{position:absolute;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--accent)}
.grid button[aria-pressed="true"] .dot{background:#fff}
.grid button:disabled .dot{display:none}

/* times column (month view) */
.times:empty{display:none}
.times{margin-top:22px}
@media(min-width:900px){ .times{margin-top:0;max-height:430px;overflow-y:auto;padding-right:4px} }
.times h3{margin:0 0 10px;font-size:13px;font-weight:650;color:var(--text)}
.slots{display:flex;flex-wrap:wrap;gap:7px}
@media(min-width:900px){ .slots{flex-direction:column;flex-wrap:nowrap} }
.slot{padding:9px 14px;background:var(--canvas);border:1px solid var(--line);
  border-radius:10px;color:var(--text);font:inherit;font-size:14px;font-weight:550;
  cursor:pointer;text-align:center;transition:all .18s var(--ease)}
.slot:hover{background:var(--surface-hi);border-color:var(--line-hi)}
.slot[aria-pressed="true"]{background:var(--text);color:#fff;border-color:transparent}

/* week view — scrolls on mobile, fits exactly on desktop */
.week{display:grid;grid-template-columns:repeat(7,minmax(96px,1fr));gap:8px;
  overflow-x:auto;padding-bottom:8px}
@media(min-width:900px){
  .week{grid-template-columns:repeat(7,minmax(0,1fr));overflow-x:visible}
}
.wcol{min-width:0}
.wcol h4{margin:0 0 9px;padding-bottom:8px;border-bottom:1px solid var(--line);
  font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--faint);text-align:center}
.wcol h4 b{display:block;margin-top:3px;font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.wcol.today h4 b{color:var(--accent)}
.wslots{display:flex;flex-direction:column;gap:6px;max-height:400px;overflow-y:auto}
.wcol .slot{padding:8px 6px;font-size:13px}
.wnone{margin:0;padding:10px 0;font-size:12px;color:var(--faint);text-align:center}

/* form */
#form{padding:0 22px 26px}
.linkish{background:none;border:0;padding:0 0 14px;color:var(--faint);font:inherit;
  font-size:13px;font-weight:600;cursor:pointer}
.linkish:hover{color:var(--text)}
.addg{padding:0;color:var(--accent)}
.addg:hover{color:var(--text)}
.hint{margin:6px 0 0;font-size:11.5px;color:var(--faint)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.row{grid-template-columns:1fr}}
.chosen{margin:0 0 18px;padding:12px 14px;background:var(--canvas);border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:10px;font-size:14px;color:var(--muted)}
.chosen strong{color:var(--text);font-weight:650}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
/* accent-ink, not --accent: white on #2F6FB5 is too low-contrast (see style.css) */
button[type=submit]{width:100%;margin-top:6px;padding:13px;background:var(--accent-ink);color:#fff;
  border:0;border-radius:var(--r);font:inherit;font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s var(--ease)}
button[type=submit]:hover:not(:disabled){background:#17497F}
button[type=submit]:disabled{opacity:.5;cursor:not-allowed}
.err{margin:12px 0 0;padding:11px 13px;background:#FDECEA;
  border:1px solid #F5C6C0;border-radius:10px;font-size:13.5px;color:#A03024}
.fine{margin:14px 0 0;font-size:12px;color:var(--faint);text-align:center}
.fine a{color:var(--muted)}

.done{padding:52px 22px 60px;text-align:center}
.done .tick{display:grid;place-items:center;width:52px;height:52px;margin:0 auto 20px;
  border-radius:50%;background:#E7F6EE;border:1px solid #B7E3CB;
  color:var(--ok);font-size:24px}
.done h2{margin:0 0 10px;font-size:24px;font-weight:800;letter-spacing:-.02em}
.done p{margin:0 0 8px;font-size:15px;color:var(--muted)}
.done .when{color:var(--text);font-weight:650}
.done a.meet{display:inline-block;margin-top:16px;padding:11px 20px;background:var(--canvas);
  border:1px solid var(--line-hi);border-radius:var(--r);font-size:14px;font-weight:600;text-decoration:none}
@media(prefers-reduced-motion:reduce){*{transition-duration:.001ms!important}}