:root {
  --purple-dark: #1a0a3d;
  --purple-darker: #12082b;
  --pink: #d63870;
  --pink-light: #e85a8a;
  --white: #ffffff;
  --gray-bg: #ececec;
  --gray-text: #444;
  --font: 'Poppins', 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--white);
  background: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--pink);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--white);
  border-radius: 30px;
  padding: 10px 22px;
  font-size: 13px;
}

/* Header */
.site-header {
  background: var(--purple-darker);
  padding: 18px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.logo img { height: 42px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.main-nav a.active { color: var(--pink-light); }

.caret {
  font-size: 11px;
  opacity: 0.7;
  display: inline-block;
  transition: transform 0.2s ease;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: none;
  color: var(--white);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  padding: 8px 0;
}

.nav-dropdown-toggle[aria-expanded="true"] .caret {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: var(--purple-dark);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 20;
  box-shadow: 0 12px 28px rgba(0,0,0,0.35);
}

.nav-dropdown-menu.open {
  display: flex;
}

.nav-dropdown-menu a {
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: normal;
  padding: 9px 12px;
  border-radius: 6px;
  line-height: 1.4;
}

.nav-dropdown-menu a:hover {
  background: rgba(255,255,255,0.08);
  color: var(--pink-light);
}

/* Hero */
.hero {
  line-height: 0;
}

.hero-banner {
  width: 100%;
  height: auto;
  display: block;
}

/* Upgrade / accordion section */
.upgrade {
  background: var(--purple-dark);
  padding: 56px 0;
  text-align: center;
}

.upgrade h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
}

.accent { color: var(--pink-light); }

.upgrade-sub {
  font-size: 15px;
  margin: 0 0 16px;
  opacity: 0.9;
}

.divider {
  width: 60px;
  border: none;
  border-top: 2px solid var(--white);
  margin: 0 auto 32px;
}

.accordion {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-flow: row;
  gap: 14px;
  max-width: 780px;
  margin: 0 auto;
  text-align: left;
  align-items: start;
}

.accordion-item:nth-child(5) { grid-column: 1; }

.accordion-item {
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 10px;
  overflow: hidden;
}

.accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  color: var(--white);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 16px 20px;
  cursor: pointer;
}

.accordion-toggle .plus {
  color: var(--pink-light);
  font-size: 18px;
  transition: transform 0.25s ease;
}

.accordion-toggle[aria-expanded="true"] .plus {
  transform: rotate(45deg);
}

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.accordion-toggle[aria-expanded="true"] + .accordion-panel {
  grid-template-rows: 1fr;
}

.accordion-panel > p {
  overflow: hidden;
  margin: 0;
  padding: 0 20px;
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.9;
}

.accordion-toggle[aria-expanded="true"] + .accordion-panel > p {
  padding: 0 20px 18px;
}

/* Course grids */
.course-grid-section, .single-course-section {
  background: var(--gray-bg);
  padding: 40px 0;
}

.section-label {
  color: #333;
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 24px;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  display: block;
  background: var(--white);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

.course-card img {
  width: 100%;
  display: block;
}

.course-card.single {
  max-width: 340px;
}

/* Footer */
.site-footer {
  background: var(--purple-darker);
  padding: 48px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
}

.footer-brand img { height: 48px; margin-bottom: 16px; }

.social-icons {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.social-icons a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 15px;
  transition: background 0.2s ease;
}

.social-icons a:hover {
  background: rgba(255,255,255,0.2);
}

.footer-link {
  font-size: 13px;
  opacity: 0.8;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 14px;
  color: #bbb;
}

.footer-col h4.accent { color: var(--pink-light); }

.footer-col a {
  display: block;
  font-size: 13px;
  opacity: 0.85;
  margin-bottom: 8px;
}

@media (max-width: 860px) {
  .header-inner { flex-wrap: wrap; }
  .main-nav { order: 3; width: 100%; justify-content: flex-start; gap: 20px; flex-wrap: wrap; }
  .nav-dropdown-menu { left: 0; transform: none; }
  .accordion { grid-template-columns: 1fr; }
  .accordion-item:nth-child(5) { grid-column: auto; }
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
}