:root {
  --ink: #111827;
  --muted: #5b6575;
  --line: #dbe4ef;
  --soft: #f5f8fc;
  --cyan: #00a7d8;
  --green: #61c554;
  --coral: #ff6b57;
  --yellow: #f5c84b;
  --panel: #ffffff;
  --shadow: 0 18px 50px rgba(17, 24, 39, .12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 58px);
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(219,228,239,.82);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: block;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(17,24,39,.14);
}

.brand strong {
  display: block;
  font-size: 17px;
  line-height: 1.05;
  letter-spacing: 0;
}

.brand small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.1;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.6px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  color: #303948;
  font-size: 14px;
  font-weight: 750;
}

.main-nav a:hover { color: var(--cyan); }

.nav-action,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 850;
  cursor: pointer;
}

.nav-action {
  background: #111827;
  color: #fff;
  font-size: 14px;
}

.button.primary { background: #111827; color: #fff; }
.button.secondary { background: #fff; color: #111827; border-color: var(--line); }
.button:hover, .nav-action:hover { transform: translateY(-1px); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  min-height: calc(100vh - 78px);
  padding: clamp(42px, 6vw, 74px) clamp(18px, 4vw, 58px) 36px;
  overflow: hidden;
  background:
    linear-gradient(90deg, #fff 0%, #fff 38%, rgba(245,248,252,.86) 38%, rgba(245,248,252,.86) 100%);
}

.hero-copy { max-width: 680px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: #147589;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1.8px;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 3px;
  border-radius: 999px;
  background: var(--coral);
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: .96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero-media {
  position: relative;
  min-height: 430px;
}

.hero-media::before,
.hero-media::after {
  content: "";
  position: absolute;
  z-index: 0;
}

.hero-media::before {
  inset: 7% 7% auto auto;
  width: 46%;
  height: 22%;
  background: var(--yellow);
  border-radius: 8px;
}

.hero-media::after {
  left: -22px;
  bottom: 14px;
  width: 190px;
  height: 92px;
  background: var(--green);
  border-radius: 8px;
}

.hero-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: min(62vh, 620px);
  min-height: 420px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-strip div {
  padding: 24px clamp(18px, 4vw, 58px);
  background: #fff;
}

.quick-strip strong {
  display: block;
  font-size: 26px;
  line-height: 1;
}

.quick-strip span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.section {
  padding: clamp(62px, 8vw, 104px) clamp(18px, 4vw, 58px);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(240px, .78fr) minmax(0, 1.22fr);
  gap: clamp(30px, 6vw, 86px);
}

.rich-copy {
  color: #354052;
  font-size: 17px;
  column-count: 2;
  column-gap: 44px;
}

.rich-copy p { break-inside: avoid; margin-bottom: 18px; }

.section-head {
  max-width: 820px;
  margin-bottom: 32px;
}

.section-head p { color: var(--muted); font-size: 17px; }
.section-head.compact { max-width: 650px; }

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.course-card {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(17,24,39,.07);
}

.course-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.course-body { padding: 22px; }

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: #0d7282;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.course-card p { color: var(--muted); font-size: 15px; }

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.meta span {
  padding: 6px 9px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #344054;
  font-size: 12px;
  font-weight: 800;
}

.learning-band {
  background:
    linear-gradient(135deg, rgba(0,167,216,.09), rgba(255,107,87,.08)),
    var(--soft);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.steps div {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps strong { display: block; margin-bottom: 8px; font-size: 20px; }
.steps p { margin-bottom: 0; color: var(--muted); }

.split-feature {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .7fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.split-feature p { color: var(--muted); font-size: 17px; }

.check-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 16px 18px 16px 48px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 750;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 14px;
  height: 8px;
  border-left: 3px solid var(--green);
  border-bottom: 3px solid var(--green);
  transform: rotate(-45deg);
}

.reviews { background: #111827; color: #fff; }
.reviews .eyebrow { color: #87e8f8; }
.reviews .section-head { margin-left: auto; margin-right: auto; text-align: center; }
.reviews .eyebrow::before { background: var(--green); }

.carousel {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 52px;
  align-items: center;
  gap: 16px;
}

.testimonial-track {
  min-height: 240px;
  position: relative;
  overflow: hidden;
}

.testimonial {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: clamp(28px, 5vw, 52px);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  opacity: 0;
  transform: translateX(22px);
  transition: opacity .35s ease, transform .35s ease;
  text-align: center;
}

.testimonial.active {
  opacity: 1;
  transform: translateX(0);
}

.testimonial p {
  max-width: 760px;
  margin-bottom: 14px;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.3;
}

.testimonial span { color: #b9c7d8; }

.carousel-btn {
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  color: #fff;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
}

.carousel-btn:hover { background: rgba(255,255,255,.16); }

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

details {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

summary {
  cursor: pointer;
  font-weight: 850;
}

details p { margin: 12px 0 0; color: var(--muted); }

.contact-section {
  padding: clamp(58px, 8vw, 96px) clamp(18px, 4vw, 58px);
  background: linear-gradient(135deg, #eaf8fb, #fff5ee);
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(26px, 5vw, 48px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.contact-card p { color: var(--muted); }
.contact-card a { font-weight: 850; color: #0f6f85; }

.contact-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: #344054;
  font-size: 13px;
  font-weight: 850;
}

input, select, textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

textarea { resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: 3px solid rgba(0,167,216,.18);
  border-color: var(--cyan);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 28px;
  padding: 34px clamp(18px, 4vw, 58px);
  color: #dbe4ef;
  background: #10151e;
}

.site-footer p {
  max-width: 500px;
  margin: 14px 0 0;
  color: #aebbd0;
}

.site-footer nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-weight: 800;
}

.footer-brand strong { color: #fff; }
.footer-brand small { color: #aebbd0; }

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  padding: 14px 18px;
  background: #111827;
  color: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.legal-main {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(42px, 7vw, 86px) clamp(18px, 4vw, 34px);
}

.legal-main h1 { font-size: clamp(38px, 5vw, 58px); }
.legal-main h2 { margin-top: 34px; font-size: 28px; }
.legal-main p, .legal-main li { color: #3f4a5a; }
.legal-main ul { padding-left: 20px; }
.legal-note { padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--soft); }

@media (max-width: 980px) {
  .hero,
  .two-col,
  .split-feature,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    background: #fff;
  }

  .hero-media { min-height: 0; }
  .hero-media img { min-height: 320px; height: auto; }
  .course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .rich-copy { column-count: 1; }
}

@media (max-width: 720px) {
  .site-header { align-items: flex-start; }
  .main-nav { display: none; }
  .nav-action { display: none; }
  .brand strong { font-size: 15px; }
  .quick-strip { grid-template-columns: repeat(2, 1fr); }
  .course-grid,
  .faq-grid,
  .steps {
    grid-template-columns: 1fr;
  }
  .carousel { grid-template-columns: 1fr; }
  .carousel-btn { display: none; }
  .testimonial-track { min-height: 300px; }
  .site-footer { grid-template-columns: 1fr; }
}