:root {
  --primary: #4338CA;
  --secondary: #A78BFA;
  --background: #F8FAFC;
  --surface: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #6B7280;
  --accent: #EAB308;
  --border: rgba(15, 23, 42, 0.1);
  --radius: 16px;
  --shadow: 0 25px 40px rgba(15, 23, 42, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.card img,
.program-card img,
.resource-card img,
.course-card img {
  height: 220px;
  object-fit: cover;
}

.hero img {
  max-height: 420px;
  object-fit: cover;
}

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

button {
  font: inherit;
}

.container {
  width: min(1200px, 100% - 2rem);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.header-content {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
}

.menu-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  margin-left: auto;
}

.menu-toggle span {
  width: 26px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 999px;
  transition: transform 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  position: absolute;
  inset: 72px 0 0;
  background: var(--surface);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease;
  opacity: 0;
  padding: 0 1.5rem 1rem;
}

.main-nav.open {
  max-height: 460px;
  opacity: 1;
}

.main-nav a {
  display: block;
  padding: 0.75rem 0;
  font-weight: 500;
  color: var(--text-secondary);
}

.page-section {
  padding: 4rem 0;
}

.hero {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 3rem 1.5rem;
  box-shadow: var(--shadow);
  margin-top: 2rem;
  display: grid;
  gap: 2rem;
}

.hero-content h1 {
  margin: 0;
  font-size: clamp(2.5rem, 4vw, 3.4rem);
}

.hero-content p {
  color: var(--text-secondary);
  margin-top: 1rem;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.button {
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 25px rgba(67, 56, 202, 0.25);
}

.primary-btn {
  background: var(--primary);
  color: #fff;
}

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

.section-title {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-title h2 {
  margin: 0;
  font-size: 2rem;
}

.grid-3 {
  display: grid;
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.card p {
  margin: 0;
  color: var(--text-secondary);
}

 .text-small {
   font-size: 0.95rem;
   color: var(--text-secondary);
   margin: 0;
 }

.hidden {
  display: none !important;
}

.card button {
  align-self: flex-start;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.filters button {
  border-radius: 999px;
  padding: 0.65rem 1.2rem;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.filters button.active,
.filters button:hover {
  background: rgba(67, 56, 202, 0.1);
  border-color: var(--primary);
  color: var(--text-primary);
}

.program-grid,
.resource-grid,
.course-grid {
  display: grid;
  gap: 1.5rem;
}

.program-card,
.resource-card,
.course-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.program-card h3,
.resource-card h3,
.course-card h3 {
  margin: 0;
}

.program-card p,
.resource-card p,
.course-card p {
  color: var(--text-secondary);
  margin: 0;
}

.program-card button,
.resource-card button,
.course-card button {
  width: fit-content;
}

.contact-grid {
  display: grid;
  gap: 1.5rem;
}

.contact-card {
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

 .contact-card form {
   display: flex;
   flex-direction: column;
   gap: 1rem;
}

 .contact-card label {
   font-weight: 600;
   color: var(--text-primary);
   font-size: 0.95rem;
   display: flex;
   flex-direction: column;
   gap: 0.35rem;
}

 .contact-card input,
 .contact-card textarea {
   border-radius: 12px;
   border: 1px solid var(--border);
   padding: 0.85rem 1rem;
  font-size: 0.95rem;
  background: #f9f9ff;
}

.contact-card textarea {
  resize: vertical;
}

.contact-card .button.primary-btn {
  align-self: flex-start;
  min-width: 180px;
}

.feedback {
  margin-top: 0.5rem;
  color: var(--accent);
  font-weight: 600;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.why-list {
  display: grid;
  gap: 0.7rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.final-cta {
  background: var(--accent);
  color: #0F172A;
  border-radius: var(--radius);
  padding: 3rem 1.5rem;
  text-align: center;
  margin-top: 2rem;
}

.final-cta h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.site-footer {
  background: var(--surface);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
}

.site-footer .footer-grid {
  display: grid;
  gap: clamp(1.25rem, 2vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.site-footer h4 {
  margin-bottom: 0.75rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-brand .logo {
  font-size: 1.35rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin: 0;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-social a {
  color: var(--text-secondary);
  text-decoration: underline;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-newsletter p {
  margin: 0 0 0.5rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.newsletter-form input {
  flex: 1;
  min-width: 200px;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
}

.newsletter-form button {
  border-radius: 999px;
  border: none;
  background: var(--text-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.footer-bottom-links {
  display: flex;
  gap: 1rem;
}

.footer-bottom-links a {
  color: var(--text-secondary);
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 640px) {
  .header-content {
    height: 84px;
  }

  .main-nav {
    position: static;
    max-height: none;
    opacity: 1;
    background: transparent;
    padding: 0;
  }

  .main-nav a {
    display: inline-flex;
    margin-left: 1.5rem;
    padding: 0;
    font-weight: 500;
  }

  .menu-toggle {
    display: none;
  }

  .hero {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .hero img {
    border-radius: calc(var(--radius) + 4px);
  }

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

  .program-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .resource-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer .footer-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .hero {
    padding: 4rem;
  }

  .course-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .resource-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .program-grid {
    gap: 2rem;
  }
}

@media (min-width: 1280px) {
  .container {
    width: min(1400px, 100% - 4rem);
  }

  .hero {
    gap: 3rem;
  }
}