/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand: #4F46E5;
  --brand-dark: #3730A3;
  --brand-light: #EEF2FF;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --green: #10B981;
  --red-muted: #FEE2E2;
  --red-text: #991B1B;
  --dark: #0F0F1A;
  --dark2: #1A1A2E;
  --mid: #374151;
  --light: #F9FAFB;
  --border: #E5E7EB;
  --text: #111827;
  --text-muted: #6B7280;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 64px rgba(0,0,0,.16);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: #fff;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
  border: none;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  padding: 16px 32px;
  font-size: 1rem;
  box-shadow: 0 6px 24px rgba(245,158,11,.35);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(245,158,11,.5); }

.btn-xl { padding: 20px 44px; font-size: 1.125rem; border-radius: 12px; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-full { width: 100%; }

.btn-nav {
  background: var(--accent);
  color: #fff;
  padding: 10px 22px;
  font-size: .9rem;
  border-radius: 8px;
}
.btn-nav:hover { background: var(--accent-dark); }

/* ===== STICKY NAV ===== */
.sticky-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { font-weight: 800; font-size: 1.1rem; color: var(--brand); }

/* ===== LABELS ===== */
.label {
  display: inline-block;
  background: var(--brand-light);
  color: var(--brand);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.label-center { display: block; text-align: center; }

/* ===== SECTION TITLE ===== */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 48px;
  color: var(--dark);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark2) 100%);
  color: #fff;
  padding: 100px 24px 80px;
  text-align: center;
}
.hero-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: .85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: .04em;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.15;
  max-width: 900px;
  margin: 0 auto 24px;
}
.gradient-text {
  background: linear-gradient(90deg, #F59E0B, #EF4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.15rem;
  color: #CBD5E1;
  max-width: 680px;
  margin: 0 auto 36px;
}
.hero-sub strong { color: #fff; }
.hero-cta-wrap { margin-bottom: 20px; }
.hero-cta-note {
  margin-top: 10px;
  font-size: .85rem;
  color: #94A3B8;
}

/* ===== HERO PROOF ===== */
.hero-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 48px;
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 36px;
}
.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 36px;
}
.proof-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
}
.proof-label {
  font-size: .82rem;
  color: #94A3B8;
  margin-top: 4px;
}
.proof-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,.15);
}

/* ===== PROBLEM ===== */
.problem {
  background: var(--light);
  padding: 80px 24px;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 36px;
}
.problem-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.problem-icon { font-size: 2.4rem; display: block; margin-bottom: 12px; }
.problem-card p { color: var(--mid); font-size: .95rem; }
.problem-bridge {
  text-align: center;
  font-size: 1.1rem;
  color: var(--mid);
  max-width: 640px;
  margin: 0 auto;
}
.problem-bridge strong { color: var(--brand); }

/* ===== COURSE INTRO ===== */
.course-intro { padding: 80px 24px; }
.course-intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.course-image-wrap { position: relative; }
.course-image { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.course-badge-float {
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  padding: 8px 20px;
  border-radius: 100px;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(79,70,229,.35);
}
.course-intro-text h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 800;
  margin: 12px 0 16px;
  color: var(--dark);
}
.course-intro-text p {
  color: var(--mid);
  margin-bottom: 20px;
}
.course-intro-text p strong { color: var(--dark); }
.course-highlights {
  list-style: none;
  margin-bottom: 28px;
}
.course-highlights li {
  padding: 6px 0;
  font-size: .95rem;
  color: var(--mid);
  border-bottom: 1px solid var(--border);
}
.course-highlights li:last-child { border-bottom: none; }

/* ===== PRICE BOX ===== */
.price-box {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.price-original {
  font-size: 1.1rem;
  color: var(--text-muted);
  text-decoration: line-through;
}
.price-current {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--green);
}
.price-save {
  background: #DCFCE7;
  color: #166534;
  font-size: .8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
}

/* ===== MODULES ===== */
.modules {
  background: var(--dark);
  padding: 80px 24px;
  color: #fff;
}
.modules .section-title { color: #fff; }
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.module-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color .2s, background .2s;
}
.module-card:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--accent);
}
.module-card-featured {
  background: linear-gradient(135deg, rgba(79,70,229,.25), rgba(245,158,11,.15));
  border-color: var(--accent);
  grid-column: span 2;
}
.module-num {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  opacity: .6;
  line-height: 1;
  margin-bottom: 12px;
}
.module-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}
.module-card p {
  font-size: .9rem;
  color: #94A3B8;
  line-height: 1.6;
  margin-bottom: 16px;
}
.module-tag {
  display: inline-block;
  background: rgba(255,255,255,.1);
  color: #CBD5E1;
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
}

/* ===== INSTRUCTOR ===== */
.instructor {
  padding: 80px 24px;
  background: var(--brand-light);
}
.instructor-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 48px;
  align-items: start;
}
.instructor-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 8px 32px rgba(79,70,229,.3);
}
.instructor-text h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 12px 0 16px;
  color: var(--dark);
}
.instructor-text p {
  color: var(--mid);
  margin-bottom: 16px;
}
.instructor-text p strong { color: var(--dark); }
.instructor-accolades {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.accolade {
  display: flex;
  flex-direction: column;
}
.accolade strong {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--brand);
}
.accolade span {
  font-size: .82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 80px 24px;
  background: var(--light);
}
.testi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}
.testi-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.testi-stars { color: var(--accent); font-size: 1.1rem; margin-bottom: 12px; }
.testi-card > p {
  color: var(--mid);
  font-size: .95rem;
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.65;
}
.testi-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.testi-author strong { display: block; font-size: .9rem; color: var(--dark); }
.testi-author span { font-size: .8rem; color: var(--text-muted); }
.testi-rating-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 32px;
  max-width: 480px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.testi-score { font-size: 1.6rem; font-weight: 900; color: var(--dark); }
.testi-stars-big { font-size: 1.2rem; color: var(--accent); }
.testi-count { font-size: .82rem; color: var(--text-muted); }

/* ===== WHO IS IT FOR ===== */
.for-who { padding: 80px 24px; }
.for-who-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.for-who-item {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-weight: 500;
  font-size: .95rem;
  color: var(--mid);
}

/* ===== COMPARISON ===== */
.comparison {
  background: var(--dark);
  padding: 80px 24px;
  color: #fff;
}
.comparison .section-title { color: #fff; }
.compare-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.compare-col {
  border-radius: var(--radius);
  padding: 32px 28px;
}
.compare-bad {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
}
.compare-good {
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
}
.compare-col h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.compare-bad h3 { color: #FCA5A5; }
.compare-good h3 { color: #6EE7B7; }
.compare-col ul { list-style: none; }
.compare-col li {
  padding: 8px 0;
  font-size: .9rem;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.compare-bad li { color: #FCA5A5; }
.compare-good li { color: #6EE7B7; }
.compare-col li:last-child { border-bottom: none; }

/* ===== PRICING ===== */
.pricing { padding: 80px 24px; background: var(--light); }
.pricing-card {
  max-width: 560px;
  margin: 0 auto;
  background: #fff;
  border: 2px solid var(--brand);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.pricing-card-top { padding: 36px 36px 28px; }
.pricing-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 20px;
}
.pricing-includes {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.pricing-list {
  list-style: none;
  margin-bottom: 0;
}
.pricing-list li {
  padding: 8px 0;
  font-size: .9rem;
  color: var(--mid);
  border-bottom: 1px solid var(--border);
}
.pricing-list li:last-child { border-bottom: none; }
.pricing-card-bottom {
  background: var(--dark);
  padding: 28px 36px;
  text-align: center;
}
.pricing-price-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 8px;
}
.pricing-original {
  font-size: 1.1rem;
  color: #94A3B8;
  text-decoration: line-through;
}
.pricing-current {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
}
.pricing-save-badge {
  display: inline-block;
  background: rgba(16,185,129,.2);
  color: #6EE7B7;
  font-size: .82rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.pricing-note {
  margin-top: 12px;
  font-size: .8rem;
  color: #94A3B8;
}

/* ===== FAQ ===== */
.faq { padding: 80px 24px; }
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: #fff;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background .15s;
  font-family: inherit;
}
.faq-question:hover { background: var(--light); }
.faq-question[aria-expanded="true"] { background: var(--brand-light); color: var(--brand); }
.faq-icon {
  font-size: 1.4rem;
  font-weight: 400;
  transition: transform .2s;
  flex-shrink: 0;
}
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-answer p {
  padding: 16px 24px 20px;
  color: var(--mid);
  font-size: .95rem;
  border-top: 1px solid var(--border);
}

/* ===== FINAL CTA ===== */
.final-cta {
  background: linear-gradient(135deg, var(--dark) 0%, var(--brand-dark) 100%);
  padding: 100px 24px;
  text-align: center;
  color: #fff;
}
.final-cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 16px;
}
.final-cta p {
  color: #CBD5E1;
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 auto 32px;
}
.final-cta-note {
  margin-top: 14px;
  font-size: .82rem;
  color: #94A3B8;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  padding: 36px 24px;
  text-align: center;
  color: #64748B;
  font-size: .82rem;
}
.footer p + p { margin-top: 8px; }
.footer-disclaimer { max-width: 640px; margin: 0 auto; line-height: 1.55; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .course-intro-inner { grid-template-columns: 1fr; gap: 40px; }
  .instructor-inner { grid-template-columns: 1fr; gap: 24px; }
  .instructor-avatar { margin: 0 auto; }
  .compare-table { grid-template-columns: 1fr; }
  .module-card-featured { grid-column: span 1; }
  .proof-item { padding: 0 16px; }
  .proof-divider { display: none; }
  .hero-proof { gap: 20px; }
  .pricing-card-top, .pricing-card-bottom { padding: 24px; }
  .testi-rating-bar { flex-direction: column; gap: 8px; }
  .instructor-accolades { gap: 20px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.9rem; }
  .btn-xl { padding: 16px 28px; font-size: 1rem; }
  .modules-grid { grid-template-columns: 1fr; }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .5s ease, transform .5s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== COUNTDOWN BANNER ===== */
.countdown-banner {
  background: linear-gradient(90deg, var(--brand-dark), var(--brand));
  color: #fff;
  text-align: center;
  padding: 10px 16px;
  font-size: .9rem;
  font-weight: 600;
}
.countdown-banner #countdown-timer {
  font-weight: 900;
  font-size: 1rem;
  color: var(--accent);
  margin-left: 6px;
  font-variant-numeric: tabular-nums;
}