:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --border: #e5e0d5;
  --text: #24291f;
  --text-dim: #6b7263;
  --accent: #5c7a5e;
  --accent-dark: #3f5941;
  --radius: 14px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--text);
}
.brand span { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: .92rem;
}
.main-nav a:not(.btn) {
  color: var(--text);
  text-decoration: none;
}
.main-nav a:not(.btn):hover { color: var(--accent-dark); }
.btn-small { padding: 8px 16px; font-size: .88rem; }

main { padding: 0 0 80px; }
h1 { font-size: 2rem; margin-bottom: 4px; }
h2 { font-size: 1.6rem; margin-bottom: 4px; }
.section-sub { color: var(--text-dim); margin-top: 0; }
.section { padding: 56px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* Hero */
.hero {
  padding: 72px 0 56px;
  text-align: center;
}
.hero-eyebrow {
  color: var(--accent-dark);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.hero h1 {
  font-size: 2.6rem;
  max-width: 700px;
  margin: 0 auto 14px;
}
.hero-sub {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 26px;
  font-size: 1.05rem;
}
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Class / instructor / location cards on the homepage */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.info-card h3 { margin: 0 0 8px; }
.info-card p { color: var(--text-dim); font-size: .92rem; margin: 0; }
.info-card .info-meta {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: .85rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}
.info-card .info-price { color: var(--accent-dark); font-weight: 700; }
.info-card .info-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-band {
  text-align: center;
  padding: 56px 0;
}
.cta-band h2 { margin-bottom: 8px; }
.cta-band .section-sub { margin-bottom: 24px; }

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0;
}
.filters select {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: .95rem;
}

.booking-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 760px) {
  .booking-layout { grid-template-columns: 1fr; }
}

.calendar-col { position: sticky; top: 20px; }
.calendar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-weight: 700;
}
.calendar-nav {
  padding: 4px 12px;
  border-radius: 999px;
}
.calendar-weekdays, .calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.calendar-weekdays {
  color: var(--text-dim);
  font-size: .78rem;
  text-align: center;
  margin-bottom: 4px;
}
.calendar-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: none;
  background: none;
  font-size: .85rem;
  color: var(--text);
  cursor: pointer;
  position: relative;
}
.calendar-day:disabled {
  color: var(--border);
  cursor: not-allowed;
}
.calendar-day.has-availability::after {
  content: "";
  position: absolute;
  bottom: 5px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.calendar-day.is-today { font-weight: 700; }
.calendar-day.is-selected {
  background: var(--accent);
  color: #fff;
}
.calendar-day.is-selected.has-availability::after { background: #fff; }
.calendar-day.is-empty { visibility: hidden; cursor: default; }
.calendar-clear {
  width: 100%;
  margin-top: 12px;
  font-size: .85rem;
}

.session-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.session-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.session-card h3 { margin: 0 0 4px; }
.session-meta { color: var(--text-dim); font-size: .9rem; margin: 2px 0; }
.session-location { font-size: .82rem; color: var(--text-dim); margin: 2px 0; }
.session-price { font-weight: 700; margin-top: 10px; }
.session-full { color: #b0413e; font-weight: 600; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: .92rem;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:disabled { background: var(--border); color: var(--text-dim); cursor: not-allowed; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(20, 20, 15, .45);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  z-index: 20;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 400px;
}
.modal h2 { margin-top: 0; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .88rem; margin-bottom: 6px; color: var(--text-dim); }
.field input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: .95rem;
}
.modal-actions { display: flex; gap: 10px; margin-top: 20px; }
.modal-error { color: #b0413e; font-size: .88rem; margin-top: 8px; }

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  color: var(--text-dim);
  font-size: .88rem;
  text-align: center;
}