@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* =====================
   CSS CUSTOM PROPERTIES
   ===================== */
:root {
  --color-bg:        #07090F;
  --color-surface:   #0F1422;
  --color-card:      #141928;
  --color-border:    #1E2840;
  --color-accent:    #2563EB;
  --color-accent-lt: #3B82F6;
  --color-teal:      #0EA5E9;
  --color-text:      #E2E8F0;
  --color-muted:     #64748B;
  --color-subtle:    #94A3B8;
  --color-white:     #FFFFFF;
  --radius-sm:       6px;
  --radius-md:       12px;
  --radius-lg:       20px;
  --font-head:       'Space Grotesk', sans-serif;
  --font-body:       'Inter', sans-serif;
  --max-w:           1200px;
  --transition:      0.25s ease;
}

/* =====================
   RESET & BASE
   ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
input, textarea, select, button { font-family: inherit; }

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

/* =====================
   NAVIGATION
   ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--color-teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-subtle);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--color-white);
  background: var(--color-card);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 9px 20px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: var(--color-accent-lt) !important; }
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-subtle);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-mobile a:hover { color: var(--color-white); background: var(--color-card); }

/* =====================
   HERO
   ===================== */
.hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 110px 24px 100px;
}
.hero-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-lines svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}
.hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 24px;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(38px, 5.5vw, 68px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--color-white);
  margin-bottom: 24px;
}
.hero h1 em { font-style: normal; color: var(--color-teal); }
.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--color-subtle);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* =====================
   BUTTONS
   ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-sm);
  padding: 13px 28px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-accent-lt); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-sm {
  font-size: 13px;
  padding: 9px 18px;
}
.btn-teal {
  background: var(--color-teal);
  color: var(--color-bg);
  font-weight: 700;
}
.btn-teal:hover { opacity: 0.88; }

/* =====================
   SECTION TITLES
   ===================== */
.section { padding: 90px 0; }
.section-alt { background: var(--color-surface); }
.section-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.8px;
  line-height: 1.18;
}
.section-sub {
  font-size: 17px;
  color: var(--color-muted);
  margin-top: 12px;
  line-height: 1.6;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}
.section-head-center {
  text-align: center;
  margin-bottom: 52px;
}
.section-head-center .section-sub {
  max-width: 560px;
  margin: 12px auto 0;
}
.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 10px;
}

/* =====================
   COURSE CARDS
   ===================== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.course-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}
.course-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}
.course-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.course-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.course-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-teal);
}
.course-level {
  font-size: 12px;
  color: var(--color-muted);
}
.course-card h3 {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 10px;
}
.course-card p {
  font-size: 14px;
  color: var(--color-subtle);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 20px;
}
.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}
.course-stats {
  display: flex;
  gap: 14px;
}
.course-stat {
  font-size: 12px;
  color: var(--color-muted);
}
.course-stat strong { color: var(--color-subtle); font-weight: 500; }

/* =====================
   FEATURE BLOCKS
   ===================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.feature-block {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color var(--transition);
}
.feature-block:hover { border-color: var(--color-accent); }
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg { color: var(--color-teal); }
.feature-block h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 10px;
}
.feature-block p {
  font-size: 14px;
  color: var(--color-subtle);
  line-height: 1.65;
}

/* =====================
   STATS ROW
   ===================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.stat-item {
  background: var(--color-card);
  padding: 36px 24px;
  text-align: center;
}
.stat-number {
  font-family: var(--font-head);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-number span { color: var(--color-teal); }
.stat-label {
  font-size: 14px;
  color: var(--color-muted);
}

/* =====================
   TESTIMONIALS
   ===================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.testimonial-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}
.testimonial-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 16px;
  color: #F59E0B;
  font-size: 16px;
}
.testimonial-text {
  font-size: 15px;
  color: var(--color-subtle);
  line-height: 1.7;
  margin-bottom: 22px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  object-fit: cover;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
}
.testimonial-role {
  font-size: 13px;
  color: var(--color-muted);
}

/* =====================
   BLOG CARDS
   ===================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.blog-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.blog-card:hover { border-color: var(--color-accent); transform: translateY(-3px); }
.blog-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.blog-card-body { padding: 24px; }
.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.blog-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-teal);
}
.blog-date { font-size: 12px; color: var(--color-muted); }
.blog-card h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.35;
  margin-bottom: 10px;
}
.blog-card p { font-size: 14px; color: var(--color-subtle); line-height: 1.6; margin-bottom: 18px; }
.blog-readmore {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-lt);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap var(--transition);
}
.blog-card:hover .blog-readmore { gap: 8px; }

/* =====================
   INSTRUCTORS
   ===================== */
.instructors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.instructor-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  transition: border-color var(--transition);
}
.instructor-card:hover { border-color: var(--color-accent); }
.instructor-photo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 2px solid var(--color-border);
}
.instructor-name {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 6px;
}
.instructor-title { font-size: 13px; color: var(--color-teal); margin-bottom: 12px; }
.instructor-bio { font-size: 13px; color: var(--color-subtle); line-height: 1.6; }

/* =====================
   MODULE LIST (course detail)
   ===================== */
.module-list { display: flex; flex-direction: column; gap: 8px; }
.module-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  transition: border-color var(--transition);
}
.module-item:hover { border-color: var(--color-accent); }
.module-num {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-teal);
  min-width: 28px;
}
.module-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}
.module-dur { font-size: 13px; color: var(--color-muted); }
.module-arrow { color: var(--color-muted); font-size: 12px; }

/* =====================
   FAQ
   ===================== */
.faq-list { display: flex; flex-direction: column; gap: 8px; max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  gap: 12px;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--color-white); }
.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-muted);
  transition: transform var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--color-teal); }
.faq-a {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-subtle);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}
.faq-item.open .faq-a { display: block; }

/* =====================
   CONTACT FORM
   ===================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}
.contact-info p { color: var(--color-subtle); line-height: 1.7; margin-bottom: 28px; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-detail-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(14, 165, 233, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-teal);
}
.contact-detail-text strong { display: block; font-size: 13px; color: var(--color-muted); margin-bottom: 3px; }
.contact-detail-text span { font-size: 15px; color: var(--color-text); }
.form-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-subtle);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-text);
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--color-accent); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select option { background: var(--color-surface); }
.form-success {
  display: none;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid var(--color-teal);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--color-teal);
  margin-top: 16px;
  align-items: center;
  gap: 10px;
}
.form-success.show { display: flex; }

/* =====================
   TWO-COL LAYOUT
   ===================== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.two-col-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.two-col-img img { width: 100%; height: 100%; object-fit: cover; }
.two-col-text h2 {
  font-family: var(--font-head);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.7px;
  line-height: 1.2;
  margin-bottom: 18px;
}
.two-col-text p {
  font-size: 16px;
  color: var(--color-subtle);
  line-height: 1.7;
  margin-bottom: 16px;
}
.check-list { display: flex; flex-direction: column; gap: 12px; margin: 24px 0; }
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-subtle);
}
.check-item::before {
  content: '';
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230EA5E9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* =====================
   POLICY PAGES
   ===================== */
.policy-wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 24px;
}
.policy-wrap h1 {
  font-family: var(--font-head);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}
.policy-date {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}
.policy-wrap h2 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-white);
  margin: 36px 0 12px;
}
.policy-wrap h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 24px 0 10px;
}
.policy-wrap p {
  font-size: 15px;
  color: var(--color-subtle);
  line-height: 1.75;
  margin-bottom: 14px;
}
.policy-wrap ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 14px;
}
.policy-wrap ul li {
  font-size: 15px;
  color: var(--color-subtle);
  line-height: 1.7;
  margin-bottom: 6px;
}
.policy-wrap a { color: var(--color-accent-lt); text-decoration: underline; }
.policy-wrap table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}
.policy-wrap th {
  background: var(--color-card);
  color: var(--color-text);
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--color-border);
}
.policy-wrap td {
  color: var(--color-subtle);
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  vertical-align: top;
}

/* =====================
   PAGE HEADER (inner pages)
   ===================== */
.page-header {
  position: relative;
  overflow: hidden;
  padding: 80px 24px 70px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.page-header-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.page-header-lines svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.12;
}
.page-header-inner { position: relative; z-index: 1; }
.page-header h1 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.8px;
  margin-bottom: 14px;
}
.page-header p {
  font-size: 17px;
  color: var(--color-subtle);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.65;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--color-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-teal); }
.breadcrumb span { color: var(--color-border); }

/* =====================
   RESOURCE CARDS
   ===================== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.resource-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: border-color var(--transition);
}
.resource-card:hover { border-color: var(--color-accent); }
.resource-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 22px;
}
.resource-body h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 6px;
}
.resource-body p { font-size: 13px; color: var(--color-subtle); line-height: 1.6; margin-bottom: 12px; }
.resource-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-lt);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap var(--transition);
}
.resource-card:hover .resource-link { gap: 8px; }

/* =====================
   SITEMAP PAGE
   ===================== */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.sitemap-group h3 {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-teal);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.sitemap-group ul { display: flex; flex-direction: column; gap: 8px; }
.sitemap-group ul li a {
  font-size: 14px;
  color: var(--color-subtle);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.sitemap-group ul li a:hover { color: var(--color-accent-lt); }
.sitemap-group ul li a::before { content: '→'; color: var(--color-border); }

/* =====================
   ARTICLE PAGE
   ===================== */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  align-items: start;
}
.article-content h2 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin: 36px 0 14px;
}
.article-content h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 24px 0 10px;
}
.article-content p {
  font-size: 16px;
  color: var(--color-subtle);
  line-height: 1.78;
  margin-bottom: 18px;
}
.article-content ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 18px;
}
.article-content ul li {
  font-size: 16px;
  color: var(--color-subtle);
  line-height: 1.7;
  margin-bottom: 6px;
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 28px 0;
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}
.article-sidebar > * { margin-bottom: 24px; }
.sidebar-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.sidebar-card h4 {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-link {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-subtle);
  font-size: 13px;
  line-height: 1.5;
  transition: color var(--transition);
}
.sidebar-link:last-child { border-bottom: none; }
.sidebar-link:hover { color: var(--color-accent-lt); }

/* =====================
   METHODOLOGY PAGE
   ===================== */
.methodology-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.method-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  position: relative;
  padding-bottom: 48px;
}
.method-step::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 52px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-border), transparent);
}
.method-step:last-child { padding-bottom: 0; }
.method-step:last-child::before { display: none; }
.method-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-teal);
  flex-shrink: 0;
  margin: 0 auto;
}
.method-content h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 10px;
  padding-top: 12px;
}
.method-content p { font-size: 15px; color: var(--color-subtle); line-height: 1.7; }

/* =====================
   FOOTER
   ===================== */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.65;
  margin-top: 12px;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-subtle);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 14px;
  color: var(--color-muted);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent-lt); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-copy {
  font-size: 13px;
  color: var(--color-muted);
}
.footer-policy {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-policy a {
  font-size: 13px;
  color: var(--color-muted);
  transition: color var(--transition);
}
.footer-policy a:hover { color: var(--color-accent-lt); }

/* =====================
   COOKIE BANNER
   ===================== */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  max-width: 600px;
  width: calc(100% - 48px);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.cookie-text { font-size: 14px; color: var(--color-subtle); line-height: 1.6; flex: 1; min-width: 200px; }
.cookie-text a { color: var(--color-accent-lt); text-decoration: underline; }
.cookie-btns { display: flex; gap: 10px; flex-shrink: 0; }
.cookie-banner.hidden { display: none; }

/* =====================
   COURSE DETAIL
   ===================== */
.course-detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 52px;
  align-items: start;
}
.course-sidebar-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: 90px;
}
.course-sidebar-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.course-sidebar-card h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}
.course-meta-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 22px; }
.course-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-subtle);
}
.course-meta-item svg { color: var(--color-teal); flex-shrink: 0; }

/* =====================
   MISC UTILITIES
   ===================== */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-teal);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-radius: 4px;
  padding: 3px 9px;
}
.divider { border: none; border-top: 1px solid var(--color-border); margin: 48px 0; }
.text-center { text-align: center; }
.mt-8 { margin-top: 32px; }
.mt-6 { margin-top: 24px; }
.mb-6 { margin-bottom: 24px; }
.highlight-box {
  background: rgba(14, 165, 233, 0.06);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: var(--radius-md);
  padding: 28px 32px;
}
.highlight-box p { color: var(--color-text); font-size: 16px; line-height: 1.7; }
.number-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.number-block {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.number-block .big { font-family: var(--font-head); font-size: 36px; font-weight: 700; color: var(--color-teal); line-height: 1; }
.number-block .lbl { font-size: 13px; color: var(--color-muted); margin-top: 6px; }

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 992px) {
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .two-col-img { aspect-ratio: 16/9; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .course-detail-grid { grid-template-columns: 1fr; }
  .course-sidebar-card { position: static; }
  .article-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { padding: 80px 24px 72px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .courses-grid, .blog-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}