:root {
  --ink: #172033;
  --muted: #637083;
  --line: #dde5ef;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --navy: #18315f;
  --teal: #0b8f86;
  --gold: #f4b942;
  --coral: #f06449;
  --shadow: 0 24px 70px rgba(23, 32, 51, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(221, 229, 239, 0.8);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

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

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-weight: 600;
}

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

.nav-cta {
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: 56px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 56px;
}

.hero-content h1 {
  max-width: 760px;
  margin: 12px 0 18px;
  font-size: clamp(2.35rem, 6vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 640px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 1.09rem;
}

.eyebrow {
  margin: 0;
  color: var(--teal);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
}

.btn.primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 14px 30px rgba(11, 143, 134, 0.26);
}

.btn.secondary {
  background: #eef7f6;
  color: var(--teal);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 640px;
}

.hero-stats div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 1.2rem;
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-panel {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(24, 49, 95, 0.92), rgba(11, 143, 134, 0.88)),
    url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?auto=format&fit=crop&w=1200&q=80") center/cover;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.class-card,
.floating-note {
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 42px rgba(23, 32, 51, 0.16);
  backdrop-filter: blur(14px);
}

.main-card {
  width: min(360px, calc(100% - 40px));
  padding: 30px;
  border-radius: 8px;
}

.card-label {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(244, 185, 66, 0.22);
  color: #8a5f00;
  font-weight: 800;
  font-size: 0.78rem;
}

.main-card h2 {
  margin: 16px 0 10px;
  font-size: 1.8rem;
}

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

.main-card ul {
  padding-left: 18px;
  margin-bottom: 0;
}

.floating-note {
  position: absolute;
  width: 220px;
  padding: 16px;
  border-radius: 8px;
}

.floating-note strong,
.floating-note span {
  display: block;
}

.floating-note span {
  color: var(--muted);
  font-size: 0.9rem;
}

.note-one {
  top: 44px;
  right: 28px;
}

.note-two {
  left: 28px;
  bottom: 46px;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 86px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading h2,
.split h2,
.form-copy h2 {
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: 0;
}

.intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  border-top: 1px solid var(--line);
}

.intro > p,
.split p,
.form-copy p {
  color: var(--muted);
  font-size: 1.04rem;
}

.grid {
  display: grid;
  gap: 18px;
}

.program-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.card:hover,
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(23, 32, 51, 0.1);
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #eef7f6;
  color: var(--teal);
  font-weight: 800;
}

.card h3 {
  margin: 18px 0 8px;
}

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

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
  background: var(--soft);
  width: 100%;
  padding-left: max(16px, calc((100% - 1180px) / 2));
  padding-right: max(16px, calc((100% - 1180px) / 2));
}

.method-list {
  display: grid;
  gap: 16px;
}

.method-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 22px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
}

.method-item > span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 900;
}

.method-item h3 {
  margin: 0 0 4px;
}

.method-item p {
  margin: 0;
}

.benefits {
  text-align: center;
}

.benefits .section-heading {
  margin-left: auto;
  margin-right: auto;
}

.benefit-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  text-align: left;
}

.benefit-item {
  padding: 18px 20px;
  border-left: 4px solid var(--gold);
  border-radius: 8px;
  background: #fffaf0;
  font-weight: 700;
}

.registration {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 48px;
  align-items: start;
  border-radius: 8px;
  padding: 54px;
  background: var(--navy);
  color: #fff;
}

.registration .eyebrow,
.registration p {
  color: rgba(255, 255, 255, 0.76);
}

.whatsapp-button {
  display: inline-flex;
  margin-top: 18px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  background: #22c55e;
  color: #fff;
  font-weight: 800;
}

.registration-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.registration-form label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.registration-form input,
.registration-form select,
.registration-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.registration-form textarea {
  resize: vertical;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--teal);
  font-weight: 700;
}

.testimonial-grid {
  grid-template-columns: repeat(3, 1fr);
}

.testimonial-card p {
  margin-top: 0;
  font-size: 1.02rem;
}

.testimonial-card strong,
.testimonial-card span {
  display: block;
}

.testimonial-card span {
  color: var(--muted);
  font-size: 0.92rem;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
}

.footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 46px max(16px, calc((100% - 1180px) / 2));
  background: #101827;
  color: #fff;
}

.footer p,
.footer small {
  color: rgba(255, 255, 255, 0.68);
}

.footer-links {
  display: flex;
  gap: 18px;
  font-weight: 700;
}

.copyright {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.floating-whatsapp {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #22c55e;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 16px 36px rgba(34, 197, 94, 0.35);
}

@media (max-width: 960px) {
  .hero,
  .intro,
  .split,
  .registration {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .program-grid,
  .benefit-wrap {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 760px) {
  .nav {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero {
    padding-top: 46px;
    gap: 34px;
  }

  .hero-stats,
  .program-grid,
  .benefit-wrap {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 460px;
  }

  .floating-note {
    position: static;
    width: calc(100% - 40px);
    margin-top: 12px;
  }

  .hero-panel {
    align-content: center;
    gap: 12px;
  }

  .section {
    padding: 64px 0;
  }

  .registration {
    padding: 28px 18px;
  }

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

  .footer-links {
    flex-wrap: wrap;
  }
}