:root {
  --color-primary: #1d4ed8;
  --color-primary-dark: #173fad;
  --color-primary-soft: #eef4ff;
  --color-secondary: #111827;
  --color-accent: #f59e0b;
  --color-text: #1f2937;
  --color-muted: #667085;
  --color-border: #e4e7ec;
  --color-surface: #ffffff;
  --color-surface-alt: #f8fafc;
  --color-footer: #101828;
  --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.05);
  --shadow-md: 0 18px 45px rgba(17, 24, 39, 0.08);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 30px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(29, 78, 216, 0.07), transparent 26rem),
    var(--color-surface);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.skip-link,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.skip-link:focus {
  z-index: 100;
  width: auto;
  height: auto;
  padding: 12px 16px;
  clip: auto;
  color: var(--color-surface);
  background: var(--color-secondary);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(228, 231, 236, 0.72);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-secondary);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: var(--color-surface);
  background: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.nav-menu {
  display: none;
  position: absolute;
  top: 76px;
  right: 16px;
  left: 16px;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.nav-menu.is-open {
  display: grid;
}

.nav-link {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--color-text);
  font-size: 0.94rem;
  font-weight: 700;
  transition:
    color 160ms ease,
    background 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.nav-cta {
  display: none;
}

.menu-toggle {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-content: center;
  gap: 5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-secondary);
}

.section {
  padding: 86px 0;
}

.section-muted {
  background: var(--color-surface-alt);
}

.section-accent {
  background: #f4f7fb;
}

.section-intro {
  max-width: 720px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-intro-left {
  margin-inline: 0;
  text-align: left;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  color: var(--color-secondary);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(3.1rem, 7vw, 6.2rem);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h3 {
  margin-bottom: 12px;
  font-size: 1.16rem;
}

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

.hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 92px;
  background:
    radial-gradient(circle at 78% 18%, rgba(29, 78, 216, 0.13), transparent 30rem),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 48px;
}

.hero-copy p:not(.eyebrow) {
  max-width: 590px;
  margin-bottom: 30px;
  font-size: 1.18rem;
}

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

.button,
.nav-cta {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:hover,
.nav-cta:hover,
.button:focus-visible,
.nav-cta:focus-visible {
  transform: translateY(-1px);
}

.button-primary,
.nav-cta {
  color: var(--color-surface);
  background: var(--color-primary);
  box-shadow: 0 10px 22px rgba(24, 73, 169, 0.18);
}

.button-primary:hover,
.nav-cta:hover {
  background: var(--color-primary-dark);
}

.button-secondary {
  color: var(--color-primary);
  background: var(--color-surface);
  border-color: #b2ccff;
}

.button-secondary:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  min-height: 430px;
  object-fit: cover;
  border: 1px solid rgba(228, 231, 236, 0.7);
  border-radius: 34px;
  box-shadow: var(--shadow-md);
}

.trust-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.trust-panel div {
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.trust-panel strong,
.trust-panel span {
  display: block;
}

.trust-panel strong {
  color: var(--color-primary);
  font-size: 1.55rem;
  line-height: 1;
}

.trust-panel span {
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.card-grid,
.course-grid,
.testimonial-grid,
.logo-grid,
.service-grid {
  display: grid;
  gap: 20px;
}

.card-grid,
.course-grid,
.testimonial-grid {
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
}

.card,
.course-card,
.testimonial-card,
.timeline-step,
.lead-form,
details,
.university-logo {
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.card,
.course-card,
.testimonial-card,
.timeline-step {
  padding: 28px;
}

.card {
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.card:hover,
.course-card:hover,
.testimonial-card:hover,
.timeline-step:hover,
.university-logo:hover {
  transform: translateY(-2px);
  border-color: #c7d7fe;
  box-shadow: var(--shadow-md);
}

.card-icon {
  display: inline-grid;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 50%;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-size: 0.72rem;
  font-weight: 900;
}

.course-card {
  position: relative;
  overflow: hidden;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.course-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, var(--color-primary), #60a5fa);
}

.course-card a {
  color: var(--color-primary);
  font-weight: 800;
}

.logo-grid {
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
}

.university-logo {
  display: grid;
  min-height: 158px;
  place-items: center;
  padding: 24px;
  text-align: center;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.university-logo span {
  display: grid;
  width: 64px;
  height: 64px;
  margin-bottom: 14px;
  place-items: center;
  border-radius: 50%;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-weight: 900;
}

.split-layout,
.assessment-grid,
.faq-layout {
  display: grid;
  gap: 44px;
}

.service-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.service-grid span {
  padding: 15px 16px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  background: var(--color-surface);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

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

.timeline-step span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.rating {
  margin-bottom: 14px;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

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

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

.faq-list {
  display: grid;
  gap: 14px;
}

summary {
  padding: 18px 20px;
  color: var(--color-secondary);
  font-weight: 800;
  cursor: pointer;
}

details p {
  margin: 0;
  padding: 0 20px 20px;
}

.assessment {
  background:
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.22), transparent 22rem),
    linear-gradient(135deg, rgba(17, 24, 39, 0.97), rgba(29, 78, 216, 0.93)),
    var(--color-secondary);
}

.assessment h2,
.assessment p,
.assessment .eyebrow {
  color: var(--color-surface);
}

.assessment .section-intro p {
  color: rgba(255, 255, 255, 0.78);
}

.lead-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field label {
  color: var(--color-secondary);
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-surface);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 3px solid #d1e0ff;
  border-color: var(--color-primary);
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

.form-status {
  margin: 0;
  color: var(--color-primary);
  font-weight: 800;
}

.floating-contact {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
}

.whatsapp-float {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 10px 18px 10px 10px;
  border-radius: 999px;
  color: #ffffff;
  background: #16a34a;
  box-shadow: 0 18px 38px rgba(22, 163, 74, 0.32);
  font-size: 0.95rem;
  font-weight: 800;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: translateY(-2px);
  background: #15803d;
  box-shadow: 0 22px 44px rgba(22, 163, 74, 0.38);
}

.whatsapp-float-icon {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  color: #16a34a;
  background: #ffffff;
  font-size: 0.72rem;
  font-weight: 900;
}

.site-footer {
  padding: 58px 0 24px;
  color: rgba(255, 255, 255, 0.75);
  background: var(--color-footer);
}

.site-footer .brand,
.site-footer h2,
.site-footer p {
  color: var(--color-surface);
}

.footer-grid {
  display: grid;
  gap: 34px;
}

.footer-grid h2 {
  margin-bottom: 14px;
  font-size: 1rem;
  letter-spacing: 0;
}

.footer-link {
  display: block;
  margin-bottom: 9px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-link:hover,
.legal-link:hover {
  color: var(--color-surface);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.legal-link {
  margin-left: 14px;
  color: rgba(255, 255, 255, 0.72);
}

@media (min-width: 720px) {
  .lead-form,
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-field-full {
    grid-column: 1 / -1;
  }

  .footer-grid {
    grid-template-columns: 1.4fr repeat(3, 1fr);
  }
}

@media (min-width: 980px) {
  .menu-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .nav-cta {
    display: inline-flex;
  }

  .hero-grid,
  .split-layout,
  .assessment-grid,
  .faq-layout {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 540px) {
  .section {
    padding: 58px 0;
  }

  .hero {
    padding: 64px 0;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-media img {
    min-height: 260px;
  }

  .trust-panel {
    grid-template-columns: 1fr;
  }

  .floating-contact {
    right: 14px;
    bottom: 14px;
  }

  .whatsapp-float span:last-child {
    display: none;
  }

  .legal-link {
    display: inline-block;
    margin: 8px 12px 0 0;
  }
}