/* ============================================
   EDUVAULT - Home Page Styles
   ============================================ */

/* ── Modern Hero Section ── */
.hero-modern {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 8rem 0;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  opacity: 0.6;
}

.shape-1 {
  top: -10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: var(--accent-primary-glow);
  animation: float 8s infinite alternate;
}

.shape-2 {
  bottom: -10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: rgba(8, 145, 178, 0.15);
  /* blue glow */
  animation: float 10s infinite alternate-reverse;
}

.shape-3 {
  top: 40%;
  left: 50%;
  width: 400px;
  height: 400px;
  background: rgba(217, 119, 6, 0.1);
  transform: translate(-50%, -50%);
}

.hero-modern-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-modern-text {
  max-width: 600px;
}

.hero-modern-text .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.hero-modern-text .hero-badge i {
  color: var(--warning);
}

.hero-modern-text h1 {
  font-size: calc(var(--fs-5xl) * 1.1);
  font-weight: var(--fw-extrabold);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

.highlight-gradient {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-modern-text .hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-8);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.trust-avatars {
  display: flex;
}

.trust-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
  margin-left: -12px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.trust-avatar:first-child {
  margin-left: 0;
}

.trust-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trust-avatar-more {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.trust-text {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.trust-text .stars {
  color: var(--warning);
  margin-bottom: 2px;
  font-size: 12px;
}

/* Visual floating assets */
.hero-modern-visual {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.glass-orb {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.orb-1 {
  width: 120px;
  height: 120px;
  top: 10%;
  right: 10%;
  animation: float 6s infinite ease-in-out;
}

.orb-2 {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 0;
  animation: float 5s infinite ease-in-out reverse;
}

.hero-floating-card {
  position: absolute;
  padding: var(--space-5);
  z-index: 2;
  box-shadow: var(--shadow-xl);
}

.main-card {
  width: 340px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 7s infinite ease-in-out;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.main-card h3 {
  font-size: var(--fs-md);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-4);
}

.progress-container {
  margin-bottom: var(--space-2);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  font-weight: var(--fw-semibold);
}

.stat-card {
  bottom: 5%;
  right: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 220px;
  animation: float 6.5s infinite ease-in-out reverse;
  padding: var(--space-4);
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(249, 115, 22, 0.15);
  color: #f97316;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.stat-info .stat-val {
  display: block;
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  line-height: 1.1;
}

.stat-info .stat-lbl {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.cert-card {
  top: 15%;
  left: 0%;
  text-align: center;
  width: 160px;
  animation: float 7.5s infinite ease-in-out 1s;
}

@media (max-width: 1024px) {
  .hero-modern-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }

  .hero-modern-text {
    margin: 0 auto;
  }

  .hero-cta,
  .hero-social-proof {
    justify-content: center;
  }

  .hero-modern-visual {
    height: 400px;
  }

  .shape-1,
  .shape-2,
  .shape-3 {
    opacity: 0.3;
  }
}

@media (max-width: 768px) {
  .hero-modern-text h1 {
    font-size: var(--fs-4xl);
  }

  .hero-modern-visual {
    display: none;
  }

  .hero-modern {
    min-height: auto;
    padding: var(--space-10) 0;
  }
}

/* ── Featured Courses ── */
.featured-courses {
  background: var(--bg-primary);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.course-card:hover {
  border-color: var(--border-secondary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.course-card-thumb {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.course-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.course-card:hover .course-card-thumb img {
  transform: scale(1.05);
}

.course-card-thumb .thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  opacity: 0.5;
}

.course-card-thumb .thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(255, 255, 255, 0.85) 100%);
}

.course-card-badges {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: flex;
  gap: var(--space-2);
}

.course-card-body {
  padding: var(--space-5);
}

.course-card-category {
  font-size: var(--fs-xs);
  color: var(--accent-primary);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.course-card-title {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.course-card-instructor {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

.course-card-instructor .avatar {
  width: 22px;
  height: 22px;
  font-size: var(--fs-xs);
  border: none;
}

.course-card-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.course-card-rating .rating-value {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--accent-primary);
}

.course-card-rating .rating-count {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-primary);
}

.course-card-price {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
}

.course-card-price .original {
  text-decoration: line-through;
  color: var(--text-tertiary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  margin-left: var(--space-2);
}

.course-card-students {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ── Categories ── */
.categories-section {
  background: var(--bg-secondary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-primary-muted), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.category-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.category-card:hover::before {
  opacity: 1;
}

.category-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  background: var(--accent-primary-muted);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  color: var(--accent-primary);
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.category-card:hover .category-icon {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  transform: scale(1.1);
}

.category-card h3 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-2);
  position: relative;
  z-index: 1;
}

.category-card .course-count {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  position: relative;
  z-index: 1;
}

/* ── Testimonials ── */
.testimonials-section {
  background: var(--bg-primary);
  position: relative;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
}

.testimonial-card:hover {
  border-color: var(--border-secondary);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 2rem;
  color: var(--accent-primary);
  opacity: 0.3;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.testimonial-text {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-author .avatar {
  width: 44px;
  height: 44px;
}

.testimonial-author-info h4 {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
}

.testimonial-author-info p {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

/* ── Instructor CTA ── */
.instructor-cta {
  background: var(--bg-secondary);
}

.cta-banner {
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-card));
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-16);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-12);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-primary-glow), transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.cta-text h2 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-4);
}

.cta-text h2 .highlight {
  color: var(--accent-primary);
}

.cta-text p {
  color: var(--text-secondary);
  font-size: var(--fs-md);
  margin-bottom: var(--space-8);
  max-width: 460px;
}

.cta-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.cta-feature i {
  color: var(--accent-primary);
  font-size: var(--fs-base);
}

.cta-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}

.cta-visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  max-width: 320px;
  width: 100%;
}

.cta-visual-icon {
  width: 80px;
  height: 80px;
  background: var(--accent-primary-muted);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-size: var(--fs-2xl);
  color: var(--accent-primary);
}

.cta-visual-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.cta-stat {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.cta-stat .value {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--accent-primary);
  display: block;
}

.cta-stat .label {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .courses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .hero h1 {
    font-size: var(--fs-4xl);
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    margin: 0 auto var(--space-10);
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-banner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .cta-text p {
    margin: 0 auto var(--space-8);
  }

  .cta-features {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: var(--fs-3xl);
  }

  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-4);
  }

  .cta-banner {
    padding: var(--space-8);
  }

  .cta-visual {
    display: none;
  }
}

@media (max-width: 480px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }

  .categories-grid {
    grid-template-columns: 1fr;
  }
}