:root {
  color-scheme: light;
  --ink: #17201b;
  --muted: #5b675f;
  --line: #d7ded8;
  --paper: #f8faf8;
  --panel: #ffffff;
  --accent: #0d6b57;
  --accent-dark: #094e40;
  --warm: #f4c95d;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand small {
  display: block;
  color: var(--muted);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-weight: 800;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
}

.page {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 64px;
}

.hero {
  min-height: 280px;
  display: flex;
  align-items: end;
  padding: 44px;
  margin-bottom: 24px;
  border-radius: 8px;
  color: white;
  background:
    linear-gradient(90deg, rgba(13, 107, 87, 0.92), rgba(13, 107, 87, 0.58)),
    url("https://images.unsplash.com/photo-1518611012118-696072aa579a?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  background-position: center;
}

.hero h1,
.panel h1,
.panel h2 {
  margin: 0 0 12px;
  line-height: 1.08;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(42px, 7vw, 76px);
}

.lede {
  max-width: 680px;
  font-size: 20px;
  line-height: 1.5;
}

.eyebrow {
  margin: 0 0 10px;
  color: inherit;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 13px;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 12px 32px rgba(23, 32, 27, 0.06);
}

.panel.narrow {
  width: min(720px, 100%);
  margin: 0 auto;
}

.session-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.session-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.session-list small {
  display: block;
  color: var(--muted);
}

.button,
button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  background: var(--accent);
  color: white;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: var(--warm);
  color: var(--ink);
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.form label {
  display: grid;
  gap: 7px;
  font-weight: 750;
}

.form input[type="text"],
.form input[type="email"],
.form textarea,
.form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  font: inherit;
  background: white;
}

.form input[type="checkbox"] {
  width: 18px;
  height: 18px;
}

.form small,
.form .helptext {
  color: var(--muted);
  font-weight: 450;
}

.radio-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.radio-group li label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 650;
}

.messages {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.message {
  margin: 0;
  padding: 12px 14px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--line);
}

.message.success {
  border-color: #9bd4b8;
  background: #effaf4;
}

.message.error {
  border-color: #e6a0a0;
  background: #fff3f3;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  .hero {
    padding: 28px;
    min-height: 360px;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }

  .session-list li {
    align-items: flex-start;
    flex-direction: column;
  }
}