:root {
  --ink: #17142f;
  --text: #17352d;
  --muted: #707386;
  --violet: #5f4bd8;
  --deep-violet: #342481;
  --lavender: #eeebff;
  --mint: #dff7ef;
  --sprout: #e3f5d4;
  --leaf: #85bf67;
  --pine: #073f38;
  --paper: #fbfaff;
  --line: rgba(75, 71, 126, 0.15);
  --shadow: 0 24px 70px rgba(51, 48, 95, 0.14);
  font-family: Inter, "Noto Sans", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(220, 213, 255, 0.78), transparent 26rem),
    radial-gradient(circle at 88% 10%, rgba(223, 247, 239, 0.92), transparent 28rem),
    linear-gradient(135deg, #f9fbf6 0%, #f6f3ff 52%, #eef9f0 100%);
}

a { color: inherit; }

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 0 12px;
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: linear-gradient(135deg, var(--violet), var(--pine));
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong { color: var(--ink); }
.brand small { color: var(--muted); }

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a,
.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border-radius: 8px;
  font-weight: 850;
  text-decoration: none;
}

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

.button.primary {
  color: white;
  background: linear-gradient(135deg, var(--pine), var(--deep-violet));
  box-shadow: 0 12px 26px rgba(52, 36, 129, 0.18);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--deep-violet);
  background: rgba(255, 255, 255, 0.78);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.76fr);
  gap: 24px;
  align-items: stretch;
  padding: 44px 0 30px;
}

.hero-copy,
.hero-panel,
.section-panel,
.legal-card,
.module-strip {
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 18px;
  background: rgba(251, 250, 255, 0.76);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-copy {
  padding: 34px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--violet);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  color: var(--ink);
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  color: var(--ink);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  color: var(--ink);
  font-size: 20px;
}

p,
li {
  color: var(--muted);
  line-height: 1.6;
}

.lead {
  max-width: 680px;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-note {
  margin-top: 20px;
  color: var(--muted);
  font-size: 14px;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  padding: 22px;
  background:
    radial-gradient(circle at 86% 12%, rgba(255, 233, 133, 0.42), transparent 8rem),
    linear-gradient(135deg, rgba(223, 247, 239, 0.94), rgba(238, 235, 255, 0.82));
}

.course-cover {
  display: grid;
  align-content: space-between;
  min-height: 100%;
  padding: 26px;
  border-radius: 12px;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.78), rgba(255,255,255,0.4)),
    radial-gradient(circle at 78% 18%, rgba(95, 75, 216, 0.2), transparent 9rem);
  border: 1px solid rgba(255,255,255,0.8);
}

.cover-mark {
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, var(--violet), var(--pine));
  font-size: 28px;
  font-weight: 900;
}

.cover-title {
  margin: 38px 0 10px;
  color: var(--ink);
  font-size: 46px;
  font-weight: 900;
  line-height: 1;
}

.cover-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.cover-list li {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,0.64);
  color: var(--text);
  font-weight: 750;
}

.section {
  padding: 24px 0;
}

.section-panel {
  padding: 28px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  min-height: 170px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,0.7);
}

.module-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}

.module-pill {
  padding: 14px;
  border-radius: 8px;
  background: rgba(255,255,255,0.68);
  border: 1px solid var(--line);
}

.module-pill strong,
.module-pill span {
  display: block;
}

.module-pill span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.legal-page {
  padding: 34px 0 22px;
}

.legal-card {
  padding: min(6vw, 44px);
}

.legal-card h1 {
  font-size: clamp(34px, 5vw, 54px);
}

.legal-card h2 {
  margin-top: 30px;
  font-size: 26px;
}

.legal-card ul {
  padding-left: 20px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 24px 0 34px;
  color: var(--muted);
  font-size: 13px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero,
  .grid-3,
  .module-strip {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 420px;
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 1180px);
  }

  .top-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links,
  .nav-links a,
  .button {
    width: 100%;
  }

  .hero-copy,
  .section-panel,
  .legal-card {
    padding: 22px;
  }
}