:root{
  --bg:#f6f7f4; --card:#ffffff; --ink:#1d2320; --dim:#66706b; --line:#e3e6e0;
  --accent:#2f6f5e; --accent-ink:#ffffff; --accent-soft:#e5f0ec;
  --busy:#eceeea; --busy-ink:#8a928d; --own:#f2e6c9; --own-ink:#6b4f12; --own-line:#d9b660;
  --danger:#b3412e; --radius:14px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#131614; --card:#1b1f1c; --ink:#e7ebe8; --dim:#98a19c; --line:#2c322e;
    --accent:#6fbfa6; --accent-ink:#0e1a15; --accent-soft:#1f3029;
    --busy:#232825; --busy-ink:#78817c; --own:#3a3120; --own-ink:#f0d79c; --own-line:#8a6d2c;
    --danger:#e07a66;
  }
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
body{margin:0; background:var(--bg); color:var(--ink); font:15px/1.5 var(--font)}
.shell{max-width:1120px; margin:0 auto; padding:0 16px}
button{font:inherit; cursor:pointer}
button:disabled{cursor:default; opacity:.45}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px}

.top{border-bottom:1px solid var(--line); background:var(--card)}
.top-in{display:flex; align-items:center; justify-content:space-between; height:60px}
.brand{display:flex; align-items:center; gap:10px; font-weight:600}
.mark{display:grid; place-items:center; width:32px; height:32px; border-radius:10px;
  background:var(--accent); color:var(--accent-ink); font-weight:700}
.top-link{color:var(--dim); text-decoration:none; font-size:14px}
.top-link:hover{color:var(--ink)}

.mine{margin:24px 0 0; padding:16px 20px; border:1px solid var(--own-line);
  background:var(--own); color:var(--own-ink); border-radius:var(--radius)}
.mine h2{margin:0 0 8px; font-size:15px}
.mine ul{margin:0; padding:0; list-style:none; display:grid; gap:8px}
.mine li{display:flex; flex-wrap:wrap; gap:8px 14px; align-items:center}
.mine a{color:inherit; font-weight:600}
.mine .later{opacity:.8}
.mine button{background:none; border:0; color:inherit; text-decoration:underline; padding:0}

.card{margin:24px 0; background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius); padding:24px}
.toolbar{display:flex; flex-wrap:wrap; gap:16px; justify-content:space-between; align-items:flex-end}
.kicker{font-size:12px; letter-spacing:.04em; text-transform:uppercase; color:var(--dim)}
h1{margin:4px 0 2px; font-size:28px; line-height:1.2}
.range{margin:0; color:var(--dim)}
.nav{display:flex; gap:8px; align-items:center}
.text-btn,.icon-btn,.secondary-btn{background:var(--card); color:var(--ink);
  border:1px solid var(--line); border-radius:10px; height:38px; padding:0 14px}
.icon-btn{width:38px; padding:0; font-size:20px; line-height:1}
.text-btn:hover:not(:disabled),.icon-btn:hover:not(:disabled),.secondary-btn:hover{border-color:var(--accent)}
.legend{display:flex; flex-wrap:wrap; gap:18px; margin:18px 0 8px; color:var(--dim); font-size:13px}
.legend span{display:flex; align-items:center; gap:6px}
.dot{width:12px; height:12px; border-radius:4px; display:inline-block}
.dot.free{background:var(--accent-soft); border:1px solid var(--accent)}
.dot.busy{background:var(--busy)}
.dot.own{background:var(--own); border:1px solid var(--own-line)}
.status{min-height:22px; color:var(--dim); font-size:13px}

.scroll{overflow-x:auto; margin:0 -24px; padding:0 24px}
.grid{display:grid; grid-template-columns:56px repeat(7, minmax(92px, 1fr));
  grid-auto-rows:34px; gap:4px; min-width:720px}
.corner,.time{color:var(--dim); font-size:12px; display:flex; align-items:center}
.day{display:flex; flex-direction:column; align-items:center; justify-content:center;
  font-size:12px; color:var(--dim); line-height:1.2}
.day strong{color:var(--ink); font-size:14px}
.day.today strong{color:var(--accent)}
.grid{grid-template-rows:48px}
.slot{border-radius:8px; border:0; font-size:12.5px; min-width:0; width:100%; height:100%}
.slot.closed{background:transparent; border:1px dashed var(--line)}
.slot.open{background:var(--accent-soft); color:var(--accent); border:1px solid transparent; font-weight:600}
.slot.open:hover{border-color:var(--accent)}
.slot.booked{background:var(--busy); color:var(--busy-ink); display:flex; align-items:center; justify-content:center}
.slot.mine{background:var(--own); color:var(--own-ink); border:1px solid var(--own-line); font-weight:600}
.empty{display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center;
  margin-top:16px; padding:16px; border-radius:10px; background:var(--busy)}
.empty p{margin:2px 0 0; color:var(--dim)}

.how{margin:8px 0 40px}
.lead{font-size:17px; margin:0 0 20px}
.lead span{color:var(--dim); font-size:13px; text-transform:uppercase; letter-spacing:.04em}
.how h2{font-size:20px; margin:0 0 12px}
.steps{display:grid; grid-template-columns:repeat(3, 1fr); gap:12px}
.steps article{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:18px}
.steps h3{margin:6px 0 4px; font-size:16px}
.steps p{margin:0; color:var(--dim)}
.num{color:var(--accent); font-weight:700; font-size:13px}
.privacy{color:var(--dim); font-size:13px; margin-top:16px}
.foot{border-top:1px solid var(--line); color:var(--dim); font-size:13px; padding:18px 0}

.modal{border:0; border-radius:var(--radius); padding:22px; width:min(440px, calc(100vw - 32px));
  background:var(--card); color:var(--ink); box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal::backdrop{background:rgba(10,14,12,.45)}
.modal-head{display:flex; justify-content:space-between; align-items:center}
.modal h2{margin:10px 0 4px; font-size:20px}
.close{background:none; border:0; font-size:24px; color:var(--dim); line-height:1}
.sel-time{font-weight:600; margin:0 0 14px}
.modal form{display:grid; gap:12px}
.modal label{display:grid; gap:4px; font-size:14px}
.modal label span{color:var(--dim); font-size:12px; font-weight:400}
.modal input{font:inherit; padding:10px 12px; border-radius:10px; border:1px solid var(--line);
  background:var(--bg); color:var(--ink)}
.trap{position:absolute; left:-9999px; width:1px; height:1px; opacity:0}
.hint{color:var(--dim); font-size:13px; margin:0}
.err{color:var(--danger); font-size:13px; margin:0}
.primary-btn,.danger-btn{height:44px; border-radius:10px; border:0; font-weight:600; width:100%}
.primary-btn{background:var(--accent); color:var(--accent-ink)}
.danger-btn{background:var(--danger); color:#fff; margin-top:12px}
.ok-icon{width:44px; height:44px; border-radius:50%; background:var(--accent-soft); color:var(--accent);
  display:grid; place-items:center; font-size:22px; margin-top:8px}

@media (max-width:720px){
  .card{padding:18px}
  .scroll{margin:0 -18px; padding:0 18px}
  h1{font-size:23px}
  .steps{grid-template-columns:1fr}
}