:root {
  --primary: #0D6E6E;
  --primary-light: #14919B;
  --primary-dark: #0A5555;
  --secondary: #F5E6D3;
  --accent: #3b3511;
  --accent-alt: #F9A826;
  --text-primary: #181715e0;
  --text-secondary: #5D6D7E;
  --white: #FFFFFF;
  --light-bg: #F8F9FA;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease-in-out;
  --border-radius: 12px;
  --border-radius-sm: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

.container,
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 15px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: var(--white);
  box-shadow: var(--shadow);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 24px;
  font-weight: 700;
  font-family: 'Playfair Display', serif;
}

.logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  transition: var(--transition);
}

.navbar.scrolled .logo-text {
  color: var(--primary-dark);
}

.logo-text span {
  display: block;
  font-size: 0.7rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  color: var(--white);
  font-weight: 500;
  position: relative;
  padding: 8px 0;
  transition: var(--transition);
}

.navbar.scrolled .nav-link {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 200px;
  box-shadow: var(--shadow);
  border-radius: var(--border-radius-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  padding: 10px 0;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  color: var(--text-primary);
  transition: var(--transition);
}

.dropdown-menu a:hover {
  background: var(--secondary);
  color: var(--primary);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.mobile-toggle span {
  width: 25px;
  height: 3px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 3px;
}

.navbar.scrolled .mobile-toggle span {
  background: var(--primary-dark);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 350px;
  height: 100vh;
  background: var(--white);
  z-index: 1001;
  padding: 80px 30px 30px;
  transition: var(--transition);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  right: 0;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--primary-dark);
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.mobile-dropdown-menu {
  display: none;
  padding-left: 16px;
}

.mobile-dropdown-menu.active {
  display: block;
}

.programs {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--light-bg), var(--white));
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--primary-dark);
}

.divider {
  width: 80px;
  height: 4px;
  background: var(--primary-light);
  margin: 15px auto 20px;
  border-radius: 999px;
}

.section-header p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--text-secondary);
}

.programs-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.program-card {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.program-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.program-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.program-card h3 {
  color: var(--primary-dark);
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.program-description {
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.program-details {
  display: grid;
  gap: 10px;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.program-details li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.program-details i {
  color: var(--primary-light);
  margin-top: 3px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 999px;
  padding: 12px 24px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  box-shadow: 0 8px 20px rgba(13, 110, 110, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(13, 110, 110, 0.28);
}

.footer {
  background: #0b2f2f;
  color: var(--white);
  padding: 60px 0 25px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  margin-bottom: 18px;
  color: var(--accent-alt);
}

.footer p,
.footer li,
.footer a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  z-index: 999;
}

.back-to-top.visible {
  display: flex;
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .nav-links,
  .dropdown {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .programs-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .programs {
    padding-top: 110px;
  }

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

  .footer-bottom {
    display: block;
  }
}