:root {
  --navy: #161b33;
  --navy-2: #1f2547;
  --gold: #c9a14a;
  --gold-soft: #e3c987;
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #20242f;
  --muted: #6b7280;
  --avail: #2f9e6f;
  --avail-bg: #e4f5ec;
  --booked: #b9892f;
  --na: #d6d6da;
  --line: #e6e6ea;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(22,27,51,0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 18px; }

.site-header {
  background: var(--navy);
  color: #fff;
  padding: 26px 0 22px;
  border-bottom: 3px solid var(--gold);
  text-align: center;
  position: relative;
}
.header-login {
  position: absolute;
  top: 14px; right: 16px;
  color: var(--navy);
  background: var(--gold);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
}
.header-login:hover { background: var(--gold-soft); }
@media (max-width: 560px) {
  .header-login { position: static; display: inline-block; margin-bottom: 14px; }
}
.brand {
  font-size: 30px; letter-spacing: 6px; font-weight: 700;
}
.brand-sub { color: var(--gold-soft); font-size: 13px; letter-spacing: 2px; margin-top: 4px; }

.intro { text-align: center; margin: 30px 0 18px; }
.intro h1 { font-size: 24px; margin: 0 0 8px; color: var(--navy); }
.intro p { color: var(--muted); margin: 0 auto; max-width: 560px; }
.legend { margin-top: 16px; display: flex; gap: 18px; justify-content: center; font-size: 13px; flex-wrap: wrap; }
.key { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.avail { background: var(--avail); }
.dot.booked { background: var(--booked); }
.dot.na { background: var(--na); }

.calendar-card, .form-card, .thanks {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 26px;
}

.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.cal-head h2 { font-size: 18px; margin: 0; color: var(--navy); }
.nav {
  border: 1px solid var(--line); background: #fff; border-radius: 10px;
  width: 38px; height: 38px; font-size: 20px; cursor: pointer; color: var(--navy);
}
.nav:hover { background: var(--bg); }

.weekday-row, .grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.weekday-row { margin-bottom: 6px; }
.weekday-row span { text-align: center; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }

.cell {
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--ink);
  background: #fff;
}
.cell.empty { border: none; background: transparent; }
.cell.na { color: #b9b9c0; background: #fafafa; }
.cell.booked { background: #fbf3e3; color: var(--booked); border-color: #f0e3c6; }
.cell.partial { background: #fff4dc; color: #9a7b1f; border-color: #f0deb0; cursor: pointer; font-weight: 600; }
.cell.partial:hover { background: var(--booked); color: #fff; }
.dot.partial { background: #e0a82e; }
.cell.available {
  background: var(--avail-bg); color: #1d7350; border-color: #bfe6d2;
  cursor: pointer; font-weight: 600;
}
.cell.available:hover { background: var(--avail); color: #fff; }
.cell.selected { background: var(--navy); color: #fff; border-color: var(--navy); }
.hint { font-size: 12px; color: var(--muted); text-align: center; margin: 14px 0 0; }

.form-card h2, .thanks h2 { color: var(--navy); margin-top: 0; }
.row { display: flex; gap: 14px; }
.row > label { flex: 1; }
label { display: block; font-size: 13px; color: var(--navy); font-weight: 600; margin-bottom: 12px; }
input, select, textarea {
  width: 100%; margin-top: 5px; padding: 10px 11px;
  border: 1px solid var(--line); border-radius: 9px; font-size: 15px;
  font-family: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--gold-soft); border-color: var(--gold); }
textarea { resize: vertical; }

.actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 8px; }
button.primary {
  background: var(--gold); color: var(--navy); border: none; font-weight: 700;
  padding: 12px 22px; border-radius: 10px; cursor: pointer; font-size: 15px;
}
button.primary:hover { background: var(--gold-soft); }
button.ghost {
  background: #fff; border: 1px solid var(--line); color: var(--navy);
  padding: 12px 18px; border-radius: 10px; cursor: pointer; font-size: 15px;
}
button.ghost:hover { background: var(--bg); }
.form-msg { margin: 10px 0 0; font-size: 14px; min-height: 18px; }
.form-msg.error { color: #c0392b; }
.form-msg.ok { color: var(--avail); }

.thanks { text-align: center; }
.unavail-note { background: #fff4dc; border: 1px solid #f0deb0; color: #8a6d1b;
  border-radius: 10px; padding: 12px 14px; margin: 0 0 16px; font-size: 14px; line-height: 1.6; }
.hidden { display: none; }

.site-footer {
  text-align: center; color: var(--muted); font-size: 13px; padding: 26px 0 40px;
}
.site-footer a { color: var(--navy); }

@media (max-width: 560px) {
  .row { flex-direction: column; gap: 0; }
  .brand { font-size: 24px; letter-spacing: 4px; }
}