/* ============================================
   Component Styles
   Reusable component patterns
   ============================================ */

/* ========== Header & Navigation ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--primary-white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: var(--space-xl);
}

.logo {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  font-family: var(--font-heading);
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition-base);
}

.logo:hover {
  color: var(--primary-gold);
  transform: scale(1.02);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-white);
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-2xl);
  align-items: center;
}

.nav-link {
  color: var(--primary-navy);
  font-weight: var(--fw-medium);
  position: relative;
  transition: color var(--transition-base);
  padding: var(--space-sm) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-gold);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--primary-gold);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary-gold);
}

.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--primary-gold);
  color: var(--primary-navy);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-weight: var(--fw-semibold);
  transition: all var(--transition-base);
}

.nav-cta:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-navy);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--primary-white);
    flex-direction: column;
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    gap: var(--space-lg);
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
}

/* ========== Hero Section ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding-top: calc(var(--header-height) + var(--space-2xl));
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
  background-size: 50px 50px;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--primary-white);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-2xl);
}

.hero-title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-lg);
  line-height: 1.2;
  background: linear-gradient(to right, var(--primary-white), var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2xl);
  opacity: 0.95;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

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

/* ========== Section Headers ========== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary-gold);
  border-radius: 2px;
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--grey-medium);
  max-width: 700px;
  margin: var(--space-lg) auto 0;
}

/* ========== Stats Grid ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.stat-card {
  background: var(--primary-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.stat-icon {
  font-size: 3rem;
  color: var(--primary-gold);
  margin-bottom: var(--space-md);
}

.stat-number {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--primary-navy);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--fs-base);
  color: var(--grey-medium);
}

/* ========== Course Cards ========== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-2xl);
}

.course-card {
  background: var(--primary-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
}

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.course-icon-wrapper {
  background: var(--gradient-primary);
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.course-icon-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.course-icon {
  font-size: 4rem;
  color: var(--primary-white);
}

.course-content {
  padding: var(--space-xl);
}

.course-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
}

.course-description {
  color: var(--grey-medium);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.course-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--secondary-grey);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
}

.course-meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-meta-label {
  font-weight: var(--fw-semibold);
  color: var(--primary-navy);
}

.course-meta-value {
  color: var(--grey-medium);
}

/* ========== Testimonial Cards ========== */
.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.testimonial-card {
  background: var(--primary-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  position: relative;
  transition: all var(--transition-base);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: var(--space-xl);
  font-size: 6rem;
  color: var(--primary-gold);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.testimonial-text {
  font-style: italic;
  color: var(--grey-dark);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

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

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-white);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
}

.testimonial-info h4 {
  color: var(--primary-navy);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-xs);
}

.testimonial-info p {
  color: var(--grey-medium);
  font-size: var(--fs-sm);
}

.testimonial-rating {
  color: var(--primary-gold);
  margin-top: var(--space-sm);
}

/* ========== Footer ========== */
.footer {
  background: var(--contrast-grey);
  color: var(--primary-white);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-section h3 {
  color: var(--primary-gold);
  margin-bottom: var(--space-lg);
  font-size: var(--fs-lg);
}

.footer-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-section a {
  color: var(--secondary-grey);
  transition: color var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-section a:hover {
  color: var(--primary-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-xl);
  text-align: center;
  color: var(--secondary-grey);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--primary-gold);
  color: var(--primary-navy);
  transform: translateY(-3px);
}

/* ========== FAQ Accordion ========== */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--primary-white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  padding: var(--space-lg) var(--space-xl);
  background: var(--secondary-grey);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--fw-semibold);
  color: var(--primary-navy);
  transition: all var(--transition-base);
}

.faq-question:hover {
  background: var(--primary-gold);
  color: var(--primary-white);
}

.faq-question.active {
  background: var(--primary-navy);
  color: var(--primary-white);
}

.faq-icon {
  transition: transform var(--transition-base);
  font-size: var(--fs-lg);
}

.faq-question.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-base);
  padding: 0 var(--space-xl);
  color: var(--grey-medium);
  line-height: 1.8;
}

.faq-answer.active {
  max-height: 500px;
  padding: var(--space-lg) var(--space-xl);
}

/* ========== Loading Spinner ========== */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-base);
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--secondary-grey);
  border-top: 4px solid var(--primary-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}