:root {
  --navy: #10151c;
  --navy-soft: #1a2230;
  --steel: #3b4757;
  --fog: #6b7684;
  --paper: #f5f4f1;
  --paper-dim: #e9e7e1;
  --accent: #b5451b;
  --accent-bright: #d2571f;
  --white: #ffffff;
  --radius: 4px;
  --max: 1120px;
  --shadow: 0 10px 30px rgba(16, 21, 28, 0.12);
  font-size: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--paper);
  line-height: 1.55;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: "Georgia", "Times New Roman", serif;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: 0.2px;
}

h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; margin-bottom: 8px; }

p { margin: 0 0 12px; color: var(--steel); }

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

ul { margin: 0; padding: 0; list-style: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.logo {
  color: var(--white);
  font-family: "Georgia", serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 1px;
}
.logo span { color: var(--accent-bright); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: rgba(255,255,255,0.82);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--white); }

.nav-cta {
  background: var(--accent);
  color: var(--white) !important;
  padding: 9px 18px;
  border-radius: var(--radius);
}
.nav-cta:hover { background: var(--accent-bright); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
}

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: var(--white);
  padding: 90px 0 70px;
}

.hero-inner { max-width: 760px; }

.eyebrow {
  color: var(--accent-bright);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  margin-bottom: 18px;
}

.hero-sub {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: var(--accent-bright); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.btn-ghost:hover { border-color: var(--white); }
.btn-block { display: block; width: 100%; text-align: center; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stats li { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.hero-stats strong { color: var(--white); display: block; font-size: 1.3rem; font-family: Georgia, serif; }

/* Trust strip */
.trust-strip {
  background: var(--paper-dim);
  border-bottom: 1px solid rgba(16,21,28,0.06);
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  padding: 16px 24px;
  font-size: 0.82rem;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--fog);
  font-weight: 600;
}

/* Courses */
.courses { padding: 90px 0; }
.section-sub {
  max-width: 640px;
  font-size: 1.05rem;
  margin-bottom: 40px;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}

.course-card {
  background: var(--white);
  border: 1px solid rgba(16,21,28,0.08);
  border-radius: var(--radius);
  padding: 26px 24px;
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.course-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.course-card.featured {
  border-color: var(--accent);
}

.badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 10px;
  border-radius: 3px;
}

.course-meta {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 10px;
}

.course-includes {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed rgba(16,21,28,0.12);
}
.course-includes li {
  font-size: 0.88rem;
  color: var(--steel);
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}
.course-includes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

/* About */
.about { background: var(--navy-soft); color: var(--white); padding: 90px 0; }
.about h2 { color: var(--white); }
.about-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 50px;
  align-items: start;
}
.about-text p { color: rgba(255,255,255,0.75); }
.credentials { margin-top: 20px; }
.credentials li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
}
.credentials li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-bright);
  font-weight: 700;
}

.about-card {
  background: var(--navy);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 30px;
}
.about-card h3 { color: var(--white); }
.about-card ol {
  margin: 0 0 24px;
  padding-left: 20px;
  list-style: decimal;
  color: rgba(255,255,255,0.75);
}
.about-card ol li { margin-bottom: 10px; font-size: 0.92rem; }

/* Testimonials */
.testimonials { padding: 90px 0; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
blockquote {
  margin: 0;
  background: var(--white);
  border-left: 3px solid var(--accent);
  padding: 22px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
blockquote p { color: var(--navy); font-style: italic; margin-bottom: 12px; }
blockquote cite { font-size: 0.85rem; color: var(--fog); font-style: normal; font-weight: 600; }

/* FAQ */
.faq { background: var(--paper-dim); padding: 90px 0; }
.faq-list { max-width: 720px; }
details {
  background: var(--white);
  border: 1px solid rgba(16,21,28,0.08);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
}
summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
}
details p { margin-top: 12px; margin-bottom: 0; }

/* Contact */
.contact { padding: 90px 0; }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact-details { margin-top: 24px; }
.contact-details p { font-size: 1rem; }
.contact-details a { color: var(--accent); font-weight: 600; }
.contact-note { font-size: 0.88rem; color: var(--fog); margin-top: 16px; }

.contact-form {
  background: var(--white);
  border: 1px solid rgba(16,21,28,0.08);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}
.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  margin-top: 16px;
}
.contact-form label:first-of-type { margin-top: 0; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(16,21,28,0.15);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--paper);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.contact-form button { margin-top: 22px; }
.form-status {
  text-align: center;
  font-size: 0.88rem;
  margin-top: 12px;
  min-height: 1.2em;
  color: var(--accent);
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 30px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 860px) {
  .about-inner, .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 16px;
    display: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-cta { margin-top: 6px; }
}