/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-on-primary);
}

.brand-logo-link:hover {
  text-decoration: none;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: #ffffff;
  padding: 2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--color-on-primary);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text-on-dark-muted);
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-20);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-on-primary);
  text-decoration: none;
  font-size: var(--font-body-size);
  font-weight: 600;
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--easing-default);
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.nav-link.active {
  border-bottom: 2px solid var(--color-accent);
  background-color: rgba(0, 86, 210, 0.25);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-on-primary);
  padding: var(--space-8);
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@media (max-width: 860px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    border-bottom: 2px solid var(--color-accent);
    padding: var(--space-16) var(--space-24);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }

  .main-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-8);
    width: 100%;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-10) var(--space-16);
  }

  .nav-actions {
    margin-top: var(--space-16);
    padding-top: var(--space-16);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-direction: column;
    width: 100%;
  }

  .nav-actions .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}

/* ==========================================================================
   Buttons & CTAs
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  font-family: var(--font-family-base);
  font-size: var(--font-body-size);
  font-weight: 600;
  line-height: 1;
  padding: 12px 20px;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--easing-default);
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-on-primary);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-on-primary);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent-light);
  color: var(--color-accent-hover);
}

.btn-secondary-light {
  background-color: transparent;
  color: var(--color-on-primary);
  border-color: var(--color-border);
}

.btn-secondary-light:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--color-on-primary);
  color: var(--color-on-primary);
}

.btn-sm {
  padding: 8px 14px;
  font-size: var(--font-small-size);
  min-height: 38px;
}

.btn-lg {
  padding: 16px 28px;
  font-size: 16px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================================================
   Badges & Tags
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: 4px 10px;
  font-size: var(--font-small-size);
  font-weight: 600;
  border-radius: var(--radius-sm);
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-kids {
  background-color: #e3f2fd;
  color: #0277bd;
  border: 1px solid #b3e5fc;
}

.badge-women {
  background-color: #f3e5f5;
  color: #7b1fa2;
  border: 1px solid #e1bee7;
}

.badge-general {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border: 1px solid #cce0ff;
}

.badge-live {
  background-color: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.badge-self-paced {
  background-color: #fff3e0;
  color: #e65100;
  border: 1px solid #ffe082;
}

/* ==========================================================================
   Cards (Uses Inset Blue Border per DESIGN.md: rgb(0,86,210) 0px 0px 0px 1px inset)
   ========================================================================== */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-20);
  display: flex;
  flex-direction: column;
  transition: transform var(--duration-fast) var(--easing-default), box-shadow var(--duration-fast) var(--easing-default);
  overflow: hidden;
  height: 100%;
}

.card-hoverable:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 86, 210, 0.15), var(--shadow-card);
}

.card-header {
  margin-bottom: var(--space-12);
}

.card-body {
  flex: 1;
  margin-bottom: var(--space-16);
}

.card-footer {
  margin-top: auto;
  padding-top: var(--space-12);
  border-top: 1px solid rgba(193, 203, 219, 0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Course Card Specifics */
.course-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  height: 100%;
  transition: transform var(--duration-fast) var(--easing-default), box-shadow var(--duration-fast) var(--easing-default);
}

.course-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 86, 210, 0.15), var(--shadow-card);
}

.course-card-image-wrap {
  position: relative;
  width: 100%;
  height: 160px;
  background-color: #e2e8f0;
  overflow: hidden;
}

.course-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-base) var(--easing-default);
}

.course-card:hover .course-card-image {
  transform: scale(1.03);
}

.course-card-badge {
  position: absolute;
  top: var(--space-10);
  left: var(--space-10);
}

.course-card-content {
  padding: var(--space-20);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  font-size: var(--font-small-size);
  color: var(--color-text-muted);
  margin-bottom: var(--space-12);
}

.course-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

.course-title {
  font-size: var(--font-heading-size);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.course-title a {
  color: inherit;
  text-decoration: none;
}

.course-title a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.course-desc {
  font-size: var(--font-body-size);
  color: var(--color-text-muted);
  margin-bottom: var(--space-16);
  flex: 1;
}

.course-card-footer {
  margin-top: auto;
  padding-top: var(--space-12);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.instructor-mini {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-small-size);
  font-weight: 600;
  color: var(--color-text);
}

.instructor-avatar-xs {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  object-fit: cover;
}

/* Instructor Card */
.instructor-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-24);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.instructor-avatar {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  object-fit: cover;
  margin-bottom: var(--space-16);
  border: 3px solid var(--color-accent-light);
  background-color: var(--color-background);
}

.instructor-name {
  font-size: var(--font-heading-size);
  margin-bottom: var(--space-4);
}

.instructor-role {
  font-size: var(--font-small-size);
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-12);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.instructor-bio {
  font-size: var(--font-body-size);
  color: var(--color-text-muted);
  margin-bottom: var(--space-16);
  flex: 1;
}

.instructor-credentials {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--font-small-size);
  padding: var(--space-4) var(--space-10);
  background-color: var(--color-background);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

/* Testimonial Card */
.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-24);
  display: flex;
  flex-direction: column;
  position: relative;
  height: 100%;
}

.testimonial-quote-icon {
  color: var(--color-accent);
  opacity: 0.25;
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-8);
}

.testimonial-text {
  font-size: var(--font-body-size);
  line-height: 1.6;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-20);
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background-color: var(--color-border);
}

.author-name {
  font-weight: 600;
  font-size: var(--font-body-size);
  color: var(--color-text);
}

.author-meta {
  font-size: var(--font-small-size);
  color: var(--color-text-muted);
}

/* ==========================================================================
   Accordion Component (for FAQs & Curriculum)
   ========================================================================== */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  width: 100%;
}

.accordion-item {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-16) var(--space-20);
  background: transparent;
  border: none;
  text-align: left;
  font-size: var(--font-subheading-size);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-default);
  min-height: 48px;
}

.accordion-trigger:hover {
  background-color: var(--color-accent-light);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--duration-base) var(--easing-default);
  flex-shrink: 0;
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 0 var(--space-20) var(--space-20);
  color: var(--color-text-muted);
  font-size: var(--font-body-size);
  line-height: 1.5;
  border-top: 1px solid rgba(193, 203, 219, 0.4);
  padding-top: var(--space-12);
}

.accordion-item.is-open .accordion-content {
  display: block;
}

/* ==========================================================================
   Form Controls
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-20);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-label {
  font-size: var(--font-body-size);
  font-weight: 600;
  color: var(--color-text);
}

.form-label .required {
  color: #c5221f;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: var(--font-body-size);
  line-height: 1.4;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--easing-default);
  min-height: 44px;
}

.form-control:focus {
  border-color: var(--color-accent);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: var(--font-small-size);
  color: var(--color-text-muted);
}

.form-error-msg {
  font-size: var(--font-small-size);
  color: #c5221f;
  display: none;
  font-weight: 600;
}

.has-error .form-control {
  border-color: #c5221f;
}

.has-error .form-error-msg {
  display: block;
}

.form-success-banner {
  display: none;
  background-color: #e8f5e9;
  border: 1px solid #a5d6a7;
  color: #1b5e20;
  padding: var(--space-16);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-20);
}

/* Filter Bar Component */
.filter-bar {
  background-color: var(--color-surface);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-md);
  padding: var(--space-16);
  margin-bottom: var(--space-32);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  align-items: center;
  justify-content: space-between;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: var(--font-small-size);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast) var(--easing-default);
  min-height: 36px;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-accent);
  color: var(--color-on-primary);
  border-color: var(--color-accent);
}

/* ==========================================================================
   Newsletter Signup Block
   ========================================================================== */
.newsletter-block {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-40) var(--space-24);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.newsletter-block h2 {
  color: var(--color-on-primary);
  margin-bottom: var(--space-8);
}

.newsletter-block p {
  color: var(--color-text-on-dark-muted);
  max-width: 540px;
  margin: 0 auto var(--space-24);
}

.newsletter-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  justify-content: center;
  max-width: 500px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1 1 260px;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  font-size: var(--font-small-size);
  margin-bottom: var(--space-24);
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-border);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding-top: var(--space-64);
  padding-bottom: var(--space-32);
  border-top: 2px solid var(--color-accent);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-32);
  margin-bottom: var(--space-48);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.footer-heading {
  font-size: var(--font-subheading-size);
  font-weight: 600;
  color: var(--color-on-primary);
  margin-bottom: var(--space-16);
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.footer-links a {
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  font-size: var(--font-body-size);
  transition: color var(--duration-fast) var(--easing-default);
  display: inline-block;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-bottom {
  padding-top: var(--space-24);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-16);
  font-size: var(--font-small-size);
  color: var(--color-text-on-dark-muted);
}

.footer-dua {
  text-align: center;
  font-style: italic;
  color: #8ab4f8;
  margin-bottom: var(--space-20);
  font-size: 13px;
}

/* ==========================================================================
   Grids & Layout Containers
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-24);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-24);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-20);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 650px) {
  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Smooth Animations & Transitions
   ========================================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 86, 210, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0, 86, 210, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 86, 210, 0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp var(--duration-base) var(--easing-default) forwards;
}

/* Scroll reveal utility classes */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--easing-default), transform 0.6s var(--easing-default);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay helpers */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Enhanced hover micro-interactions */
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 86, 210, 0.3);
}

.btn-secondary:hover, .btn-secondary-light:hover {
  transform: translateY(-2px);
}

.brand-logo-img {
  transition: transform var(--duration-base) var(--easing-default);
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.05) rotate(-2deg);
}

.powered-by-link {
  color: #8ab4f8;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration-fast) var(--easing-default);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.powered-by-link:hover {
  color: #ffffff;
  text-decoration: underline;
}