/* ---------- Base ---------- */
:root {
  --primary: #2954E4;
  --primary-dark: #1E3FB8;
  --dark: #101828;
  --gray: #5B6472;
  --border: #E6E9EF;
  --bg-soft: #F6F8FC;
  --radius: 12px;
}

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

body {
  font-family: 'Inter', Arial, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: #fff;
}

h1, h2, h3, h4 { font-family: 'Poppins', Arial, sans-serif; line-height: 1.25; }

p { font-size: 16px; color: var(--gray); }

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

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

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: 0.2s ease;
  border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--bg-soft); }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: var(--dark);
}
.logo span { color: var(--primary); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-weight: 500;
  font-size: 15px;
  color: var(--gray);
}
.main-nav a:hover,
.main-nav a.active { color: var(--primary); }
.nav-cta { padding: 10px 22px; }

.nav-toggle { display: none; }
.nav-burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-burger span { width: 24px; height: 2px; background: var(--dark); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0; background: var(--bg-soft); }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: #E7ECFD;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.hero-text h1 { font-size: 42px; margin-bottom: 18px; }
.hero-text p { margin-bottom: 28px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; }

.hero-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px;
}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.stat strong { display: block; font-family: 'Poppins', sans-serif; font-size: 28px; color: var(--primary); }
.stat span { font-size: 14px; color: var(--gray); }

/* ---------- Sections ---------- */
.section { padding: 80px 0; }
.section-title { font-size: 30px; text-align: center; margin-bottom: 10px; }
.section-sub { text-align: center; max-width: 560px; margin: 0 auto 44px; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: 0.2s ease;
}
.card:hover { box-shadow: 0 10px 30px rgba(16,24,40,0.07); transform: translateY(-3px); }
.card .icon { font-size: 28px; margin-bottom: 14px; }
.card h3 { font-size: 19px; margin-bottom: 8px; }

.course-tile {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 24px;
}
.course-tile h4 { font-size: 17px; margin-bottom: 8px; }
.center-cta { text-align: center; margin-top: 40px; }

.cta-band { background: var(--primary); }
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta-inner h2 { color: #fff; font-size: 26px; margin-bottom: 8px; }
.cta-inner p { color: #DCE4FB; }

/* ---------- Page Hero (inner pages) ---------- */
.page-hero { background: var(--bg-soft); padding: 60px 0; text-align: center; }
.page-hero h1 { font-size: 34px; margin-bottom: 12px; }
.page-hero p { max-width: 560px; margin: 0 auto; }

/* ---------- Courses page ---------- */
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: #E7ECFD;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.course-card h3 { font-size: 19px; margin-bottom: 10px; }
.course-card p { margin-bottom: 18px; }

.sponsorship { background: var(--bg-soft); }
.sponsorship-inner { text-align: center; max-width: 640px; margin: 0 auto; }
.sponsorship h2 { font-size: 26px; margin-bottom: 12px; }
.sponsorship p { margin-bottom: 24px; }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}
.contact-info h2 { font-size: 24px; margin-bottom: 12px; }
.contact-list { margin-top: 28px; list-style: none; }
.contact-list li {
  display: flex;
  flex-direction: column;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.contact-list strong { font-size: 14px; color: var(--dark); }
.contact-list span { font-size: 16px; color: var(--gray); }

.contact-form-wrap {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 32px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-error { color: #D92D20; font-size: 13px; }

.alert-success {
  background: #ECFDF3;
  color: #067647;
  border: 1px solid #ABEFC6;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 18px;
  font-size: 15px;
}

/* ---------- Privacy page ---------- */
.narrow { max-width: 760px; }
.narrow h2 { font-size: 20px; margin: 32px 0 10px; }
.narrow h2:first-child { margin-top: 0; }
.narrow p { margin-bottom: 4px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: #C6CBD6; padding-top: 60px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand p { color: #9CA3B3; margin-top: 14px; font-size: 15px; max-width: 280px; }
.footer-brand .logo { color: #fff; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; font-size: 15px; }
.site-footer ul li a:hover { color: #fff; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; }
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: #9CA3B3;
}
.footer-legal a { margin-left: 18px; }
.footer-legal a:hover { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-burger { display: flex; }
  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .nav-toggle:checked ~ .main-nav { display: flex; }
  .nav-cta { align-self: flex-start; }

  .grid-3, .grid-4, .footer-grid { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 30px; }
  .cta-inner { flex-direction: column; text-align: center; }
}