:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #14161f;
  --muted: #6b7083;
  --border: #e5e7ef;
  --primary: #4f46e5;
  --primary-soft: #eef0ff;
  --primary-text: #ffffff;
  --success: #16a34a;
  --danger: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(20,22,31,.04), 0 8px 24px rgba(20,22,31,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f14;
    --surface: #171922;
    --text: #eceef5;
    --muted: #9095a8;
    --border: #262937;
    --primary: #7c74ff;
    --primary-soft: #23224a;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--muted); }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 40px);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.logo {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), #a855f7); color: #fff; font-size: 16px;
}
nav { display: flex; gap: 4px; }
.tab {
  border: 0; background: transparent; color: var(--muted);
  padding: 8px 14px; border-radius: 999px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.tab.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.badge {
  background: var(--primary); color: #fff; font-size: 11px; border-radius: 999px;
  min-width: 18px; height: 18px; padding: 0 5px; display: inline-grid; place-items: center;
}

main { max-width: 920px; margin: 0 auto; padding: 32px 16px 64px; }
.hero h1 { font-size: clamp(26px, 4vw, 36px); margin: 0 0 6px; letter-spacing: -0.02em; }
.hero p { margin: 0 0 24px; color: var(--muted); }

.steps { list-style: none; padding: 0; margin: 0 0 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.step {
  display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; font-weight: 500;
  padding: 6px 12px 6px 6px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface);
}
.step span {
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  background: var(--border); color: var(--muted); font-size: 12px;
}
.step.active { color: var(--text); border-color: var(--primary); }
.step.active span, .step.done span { background: var(--primary); color: #fff; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: clamp(18px, 3vw, 28px);
}
.card h2 { margin: 0 0 18px; font-size: 20px; }

.services { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.service {
  text-align: left; background: var(--surface); color: var(--text);
  border: 1.5px solid var(--border); border-radius: 12px; padding: 16px;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.service:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.service .ico { font-size: 24px; }
.service h3 { margin: 8px 0 4px; font-size: 16px; }
.service p { margin: 0 0 10px; font-size: 13px; color: var(--muted); }
.service .meta { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; }
.service .meta span:first-child { color: var(--muted); font-weight: 500; }

.datetime { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; }
@media (max-width: 700px) { .datetime { grid-template-columns: 1fr; } }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 18px;
}
.icon-btn:disabled { opacity: .35; cursor: default; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow span { text-align: center; font-size: 12px; color: var(--muted); padding: 4px 0; }
.day {
  aspect-ratio: 1; border: 0; border-radius: 10px; background: transparent; color: var(--text); font-weight: 500;
}
.day:hover:not(:disabled) { background: var(--primary-soft); }
.day:disabled { color: var(--muted); opacity: .4; cursor: default; }
.day.today { box-shadow: inset 0 0 0 1.5px var(--border); }
.day.selected { background: var(--primary); color: #fff; }

.slots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.slot {
  padding: 10px 0; border-radius: 10px; border: 1.5px solid var(--border);
  background: var(--surface); color: var(--text); font-weight: 500; font-size: 14px;
}
.slot:hover:not(:disabled) { border-color: var(--primary); }
.slot:disabled { text-decoration: line-through; color: var(--muted); opacity: .5; cursor: default; }
.slot.selected { background: var(--primary); border-color: var(--primary); color: #fff; }

.actions { display: flex; justify-content: space-between; gap: 10px; margin-top: 24px; }
.actions.center { justify-content: center; }
.btn {
  border-radius: 10px; padding: 11px 20px; font-weight: 600; border: 1.5px solid transparent;
  transition: filter .15s, opacity .15s;
}
.btn.primary { background: var(--primary); color: var(--primary-text); }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.primary:disabled { opacity: .45; cursor: default; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.small { padding: 7px 12px; font-size: 13px; }
.btn.danger { color: var(--danger); }

.details-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px; }
@media (max-width: 700px) { .details-layout { grid-template-columns: 1fr; } }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
label em { color: var(--muted); font-style: normal; font-weight: 400; }
input, textarea {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1.5px solid var(--border); border-radius: 10px; padding: 10px 12px; width: 100%;
}
input:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.error { color: var(--danger); font-size: 13px; margin: 0; min-height: 1em; }

.summary { background: var(--primary-soft); border-radius: 12px; padding: 18px; align-self: start; }
.summary h4 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.summary .row { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; padding: 6px 0; }
.summary .row span:first-child { color: var(--muted); }
.summary .row.total { border-top: 1px solid var(--border); margin-top: 6px; padding-top: 12px; font-weight: 700; }

.success { text-align: center; padding: 24px 0; }
.check {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); font-size: 30px; font-weight: 700;
}

.bookings { display: grid; gap: 12px; }
.booking {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.booking.past { opacity: .6; }
.booking .date {
  flex: none; width: 58px; text-align: center; border-radius: 10px; background: var(--primary-soft); padding: 8px 0;
}
.booking .date b { display: block; font-size: 20px; line-height: 1.1; }
.booking .date small { color: var(--muted); font-size: 11px; text-transform: uppercase; font-weight: 600; }
.booking .info { flex: 1; min-width: 0; }
.booking .info h3 { margin: 0; font-size: 15px; }
.booking .info p { margin: 2px 0 0; font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.empty {
  text-align: center; padding: 48px 16px; border: 1.5px dashed var(--border); border-radius: var(--radius); color: var(--muted);
}

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 14px;
  transition: all .25s; pointer-events: none; max-width: calc(100% - 32px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }