* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy: #0b1b33;
  --navy-light: #10294d;
  --gold: #c79a45;
  --cream: #f8f3ea;
  --white: #ffffff;
  --text: #1d2430;
  --muted: #6f7785;
  --shadow: 0 22px 45px rgba(11, 27, 51, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 243, 234, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 27, 51, 0.08);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  min-width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 0 10px;
}

.nav-links {
  display: flex;
  gap: 28px;
  color: var(--navy);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--gold);
}

.menu-btn {
  display: none;
  background: none;
  border: 0;
  font-size: 28px;
  color: var(--navy);
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 90px 24px 70px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 46px;
  align-items: center;
}

.eyebrow {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 14px;
}

h1 {
  font-size: clamp(42px, 7vw, 76px);
  line-height: 0.98;
  color: var(--navy);
  margin-bottom: 24px;
}

h1 span {
  color: var(--gold);
}

h2 {
  color: var(--navy);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  margin-bottom: 18px;
}

h3 {
  color: var(--navy);
  font-size: 22px;
  margin-bottom: 12px;
}

.hero-text {
  max-width: 650px;
  font-size: 19px;
  color: var(--muted);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow);
}

.secondary {
  border: 2px solid var(--navy);
  color: var(--navy);
}

.hero-card {
  background: var(--navy);
  color: var(--white);
  padding: 42px;
  border-radius: 32px;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 2px solid rgba(199, 154, 69, 0.4);
  border-radius: 50%;
  top: -80px;
  right: -60px;
}

.monogram {
  width: 96px;
  height: 96px;
  border: 2px solid var(--gold);
  color: var(--gold);
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 28px;
}

.hero-card h2 {
  color: var(--white);
  font-size: 30px;
}

.hero-card p {
  color: rgba(255, 255, 255, 0.72);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 70px 24px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 34px;
  align-items: start;
}

.about-grid p {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 18px;
}

.facts {
  background: var(--white);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.facts div {
  padding: 16px 0;
  border-bottom: 1px solid rgba(11, 27, 51, 0.08);
}

.facts div:last-child {
  border-bottom: 0;
}

.facts strong,
.facts span {
  display: block;
}

.facts strong {
  color: var(--navy);
}

.facts span {
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--white);
  padding: 30px;
  border-radius: 24px;
  box-shadow: 0 16px 30px rgba(11, 27, 51, 0.08);
  border: 1px solid rgba(11, 27, 51, 0.06);
}

.card p {
  color: var(--muted);
}

.lesson-box {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: var(--white);
  border-radius: 34px;
  padding: 46px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  box-shadow: var(--shadow);
}

.lesson-box h2 {
  color: var(--white);
}

.lesson-box p {
  color: rgba(255, 255, 255, 0.74);
}

.lesson-box ul {
  list-style: none;
  display: grid;
  gap: 14px;
}

.lesson-box li {
  background: rgba(255, 255, 255, 0.1);
  padding: 14px 16px;
  border-radius: 14px;
}

.contact-card {
  background: var(--white);
  max-width: 720px;
  margin: 0 auto;
  border-radius: 28px;
  padding: 34px;
  text-align: center;
  box-shadow: var(--shadow);
}

.contact-name {
  color: var(--navy);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}

.contact-card a {
  color: var(--navy);
  font-size: 22px;
  font-weight: 800;
  word-break: break-word;
}

.contact-card p {
  color: var(--muted);
  margin-top: 10px;
}

.contact-card strong {
  color: var(--navy);
}

footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.75);
  text-align: center;
  padding: 24px;
}

@media (max-width: 820px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    left: 24px;
    right: 24px;
    top: 82px;
    background: var(--white);
    border-radius: 18px;
    padding: 18px;
    flex-direction: column;
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-links.show {
    display: flex;
  }

  .hero,
  .about-grid,
  .lesson-box {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 60px;
  }

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