:root {
  --black: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --navy: #0b2a4a;
  --orange: #e87722;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--black);
  background: #fff;
  line-height: 1.47;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 34px; width: auto; }
.brand-text {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}
.nav { display: flex; align-items: center; gap: 22px; font-size: 14px; }
.nav a:hover { opacity: 0.65; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: 980px;
  padding: 11px 20px;
  border: 0;
}
.btn:hover { opacity: 0.88; }
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line);
}

.hero { padding: 92px 0 20px; text-align: center; }
.hero .eyebrow {
  color: var(--orange);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 600;
  max-width: 14ch;
  margin: 0 auto 18px;
}
.hero p {
  font-size: 21px;
  color: var(--muted);
  max-width: 34em;
  margin: 0 auto 28px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.hero-photo {
  width: min(1100px, calc(100% - 24px));
  margin: 40px auto 0;
  border-radius: 22px;
  overflow: hidden;
}
.hero-photo img {
  width: 100%;
  height: min(62vh, 620px);
  object-fit: cover;
}

.section { padding: 84px 0; }
.section.alt { background: #f5f5f7; }
.section h2 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
}
.lead { font-size: 19px; color: var(--muted); max-width: 36em; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.photo-panel {
  border-radius: 22px;
  overflow: hidden;
  min-height: 420px;
  background: #eee url("../images/lesson.jpg") center/cover no-repeat;
}

.rows { margin-top: 48px; border-top: 1px solid var(--line); }
.row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.row strong { font-size: 13px; color: var(--muted); font-weight: 600; }
.row h3 { font-size: 21px; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 4px; }
.row p { color: var(--muted); font-size: 16px; }

.cta { text-align: center; padding: 96px 20px; }
.cta p { margin: 0 auto 24px; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a:hover { color: var(--black); }

.page-hero { padding: 72px 0 20px; text-align: center; }
.page-hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  letter-spacing: -0.035em;
  font-weight: 600;
}
.page-hero p { color: var(--muted); font-size: 19px; margin: 10px auto 0; max-width: 28em; }

.calendar-shell {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  min-height: 640px;
}

@media (max-width: 800px) {
  .brand-text, .hide-mobile { display: none; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .hero { padding-top: 56px; }
  .hero p { font-size: 18px; }
  .row { grid-template-columns: 1fr; gap: 4px; }
  .photo-panel { min-height: 280px; }
}