:root {
  --bg: #fffaf3;
  --text: #22304a;
  --primary: #ff7a59;
  --secondary: #3bb4a1;
  --kids: #ffd96a;
  --teens: #c8b6ff;
  --card: #ffffff;
  --shadow: 0 12px 28px rgba(34, 48, 74, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fffdf9 0%, var(--bg) 100%);
  line-height: 1.6;
}

.container {
  width: min(1050px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #ffffff;
  border-bottom: 3px solid #ffe6da;
  position: sticky;
  top: 0;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  font-size: 1.2rem;
  margin: 0;
  color: var(--primary);
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1rem;
  font-weight: 700;
}

nav a:hover {
  color: var(--primary);
}

.hero {
  padding: 4rem 0 3rem;
  background: radial-gradient(circle at top right, #fff1c9 0%, transparent 50%),
    radial-gradient(circle at top left, #efe6ff 0%, transparent 45%);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08rem;
  font-weight: 700;
  color: var(--secondary);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin: 0.3rem 0 0.7rem;
}

.cta-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.3rem;
}

.btn {
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 700;
}

.btn-alt {
  background: var(--secondary);
}

.card-grid {
  margin: 2rem auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

.card a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
}

.panel {
  border-radius: 16px;
  padding: 1.1rem;
}

.kids {
  background: #fff8df;
  border: 2px solid var(--kids);
}

.teens {
  background: #f3eeff;
  border: 2px solid var(--teens);
}

.page-main {
  padding: 2.3rem 0 3rem;
}

.intro {
  max-width: 750px;
}

.course-group {
  margin-top: 1.2rem;
  padding: 1rem;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
  margin-top: 0.7rem;
}

.level-card {
  border-radius: 12px;
  padding: 0.9rem;
  border: 2px solid transparent;
}

.level-card h4 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.level-card p {
  margin-top: 0;
  margin-bottom: 0.8rem;
}

.level-basic {
  background: #fff3df;
  border-color: #ffbf5e;
}

.level-intermediate {
  background: #e8f8ff;
  border-color: #65b9ff;
}

.level-professional {
  background: #efe9ff;
  border-color: #9a83ff;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.9rem;
  margin-top: 0.7rem;
}

.calendar-card {
  background: #ffffff;
  border: 2px solid #ffd9cc;
  border-radius: 12px;
  padding: 0.9rem;
}

.calendar-card h4 {
  display: inline-block;
  margin-top: 0;
  margin-bottom: 0.55rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff7a59, #ffb370);
  color: #ffffff;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 14px rgba(255, 122, 89, 0.35);
}

.date-link {
  color: inherit;
  text-decoration: none;
}

.date-link:hover {
  text-decoration: underline;
}

.calendar-card p {
  margin: 0.3rem 0;
}

.calendar-card-active {
  border-color: #3bb4a1;
  box-shadow: 0 0 0 3px rgba(59, 180, 161, 0.2);
}

.site-footer {
  background: #22304a;
  color: #f7f7f7;
  padding: 1rem 0;
  text-align: center;
}

@media (max-width: 700px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  nav a {
    margin: 0 0.8rem 0 0;
  }
}