:root{
  --teal:#0f766e; --teal-light:#14b8a6; --ink:#243447; --muted:#5b6b7b;
  --line:#dde3e8; --bg:#f5f8f8; --danger:#b91c1c; --ok:#0f766e; --warn-bg:#fef3c7; --warn-ink:#78350f;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;line-height:1.5;color:var(--ink);background:var(--bg)}
.top{background:var(--teal);color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.brand{color:#fff;text-decoration:none;font-weight:bold;font-size:18px}
#top-nav{display:flex;align-items:center;gap:12px;font-size:14px}
.demo-banner{background:var(--warn-bg);color:var(--warn-ink);text-align:center;padding:8px 16px;font-size:14px}
main{max-width:980px;margin:0 auto;padding:24px 16px 60px}
.center{text-align:center}
.muted{color:var(--muted)}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:20px}
.card h2{margin:0 0 12px;font-size:20px}
.card h3{margin:16px 0 8px;font-size:16px}
.auth{max-width:420px;margin:30px auto}
.tabs{display:flex;gap:8px;margin-bottom:16px}
.tab{flex:1;padding:10px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:15px}
.tab[aria-selected="true"]{background:var(--teal);color:#fff;border-color:var(--teal)}
label{display:block;font-size:14px;font-weight:bold;margin:12px 0 4px}
input,select,textarea{width:100%;padding:10px;font-size:15px;border:1px solid #b8c2cc;border-radius:6px;font-family:inherit;background:#fff;color:var(--ink)}
input[type=checkbox]{width:auto;margin-right:6px}
.check{font-weight:normal;display:flex;align-items:center;margin-top:14px}
button{font-family:inherit;font-size:15px;cursor:pointer}
.btn{padding:10px 18px;background:var(--teal);color:#fff;border:none;border-radius:6px}
.btn:hover{background:#0b5e57}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn.secondary{background:#fff;color:var(--teal);border:1px solid var(--teal)}
.btn.danger{background:#fff;color:var(--danger);border:1px solid var(--danger)}
.btn.small{padding:6px 12px;font-size:14px}
.btn.link{background:none;color:#fff;border:1px solid rgba(255,255,255,.6)}
.msg{margin:12px 0 0;font-weight:bold;font-size:14px;min-height:1.2em}
.msg.error{color:var(--danger)}
.msg.ok{color:var(--ok)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.row{grid-template-columns:1fr}}
.slots{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.slot{padding:8px 12px;border:1px solid var(--teal);background:#fff;color:var(--teal);border-radius:6px}
.slot[aria-pressed="true"]{background:var(--teal);color:#fff}
.appt{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 0;border-top:1px solid var(--line)}
.appt:first-of-type{border-top:none}
.appt .when{font-weight:bold}
.appt .who,.appt .why{font-size:14px;color:var(--muted)}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:10px;background:#e6f4f2;color:var(--teal);margin-left:6px}
.badge.cancelled{background:#fde8e8;color:var(--danger)}
.badge.completed{background:#e8eef5;color:var(--ink)}
.video-wrap{background:#000;border-radius:10px;overflow:hidden}
.video-wrap iframe{width:100%;height:70vh;min-height:420px;border:0;display:block}
.video-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:8px;flex-wrap:wrap}