/* ──── Landing Page ──── */
.landing-page {
  background: var(--bg-primary);
}

/* ──── Hero ──── */
.lp-hero {
  position: relative;
  min-height: clamp(520px, 82vh, 860px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(150deg, #e6f2fb 0%, #eef6fd 30%, #f5faff 60%, var(--bg-primary) 100%);
}

[data-theme="dark"] .lp-hero {
  background: linear-gradient(150deg, #0c1d30 0%, #101c2c 40%, #0d1824 70%, var(--bg-primary) 100%);
}

.lp-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.lp-hero-bg::before {
  content: '';
  position: absolute;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 156, 189, 0.13) 0%, transparent 65%);
  top: -200px;
  right: -150px;
}

.lp-hero-bg::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 156, 189, 0.07) 0%, transparent 65%);
  bottom: -80px;
  left: 5%;
}

.lp-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(2.5rem, 10vh, 6rem);
  padding-bottom: clamp(2.5rem, 10vh, 6rem);
  max-width: 680px;
}

.lp-hero-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-dark);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  padding: 0.35rem 1rem;
  background: var(--color-primary-50);
  border-radius: var(--radius-full);
}

[data-theme="dark"] .lp-hero-eyebrow {
  background: var(--color-primary-900);
  color: var(--color-primary-lighter);
}

.lp-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3.8rem, 10vw, 7.5rem);
  font-weight: 400;
  line-height: 0.95;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
  letter-spacing: -0.01em;
}

.lp-accent {
  color: var(--color-primary);
  font-style: italic;
}

.lp-hero-sub {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: var(--space-2xl);
}

.lp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ──── Sections ──── */
.lp-section {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.lp-section-alt {
  background: var(--bg-secondary);
}

.lp-section-cta {
  background: linear-gradient(140deg, var(--color-primary-50) 0%, var(--bg-secondary) 100%);
  border-top: 1px solid var(--color-primary-100);
  text-align: center;
}

[data-theme="dark"] .lp-section-cta {
  background: linear-gradient(140deg, #0d1f32 0%, var(--bg-secondary) 100%);
  border-top-color: var(--border-color);
}

.lp-section-intro {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.lp-section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.lp-section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.lp-section-lead {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 0;
}

/* ──── Features Grid ──── */
.lp-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.lp-feature {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.lp-feature:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.lp-feature-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-50);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.3rem;
  margin-bottom: var(--space-lg);
}

[data-theme="dark"] .lp-feature-icon {
  background: var(--color-primary-900);
}

.lp-feature h4 {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}

.lp-feature p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* ──── Course Grid ──── */
.lp-course-grid {
  max-width: 680px;
  margin: 0 auto;
}

.lp-course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.lp-course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.lp-course-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.lp-coming-soon-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  background: var(--color-primary-50);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-primary-100);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

[data-theme="dark"] .lp-coming-soon-badge {
  background: var(--color-primary-900);
  border-color: var(--border-color);
  color: var(--color-primary-lighter);
}

.lp-course-date {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.lp-course-title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3.5vw, 1.9rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.lp-course-instructor {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: 6px;
}

.lp-course-desc {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.lp-course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.lp-course-tags span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.lp-course-tags span i {
  color: var(--color-primary);
}

.lp-course-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ──── CTA ──── */
.lp-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.lp-cta-inner .lp-section-title {
  margin-bottom: 0;
}

.lp-cta-inner p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 500px;
  text-align: center;
  margin: 0;
}

.lp-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* ──── Responsive ──── */
@media (max-width: 640px) {
  .lp-hero-title {
    font-size: clamp(3rem, 14vw, 4.5rem);
  }

  .lp-hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .lp-hero-actions .btn {
    width: 100%;
    max-width: 260px;
  }

  .lp-features {
    grid-template-columns: 1fr;
  }

  .lp-course-actions {
    flex-direction: column;
  }

  .lp-course-actions .btn {
    width: 100%;
  }

  .lp-cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .lp-cta-buttons .btn {
    width: 100%;
    max-width: 260px;
  }
}

@media (min-width: 641px) and (max-width: 900px) {
  .lp-features {
    grid-template-columns: repeat(2, 1fr);
  }
}