/* =====================================================
   CLASE - Futuristic Class Showcase Styles
   ===================================================== */

/* Floating Navigation */
.class-nav {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.class-nav__inner {
  background: var(--hd-a);
  backdrop-filter: blur(12px);
  border-radius: 2rem;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  border: 1px solid rgba(255,255,255,0.08);
}

.class-nav__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  color: var(--grey-li);
  transition: all 0.3s ease;
  position: relative;
}

.class-nav__item .material-icons {
  font-size: 1.25rem;
}

.class-nav__item:hover,
.class-nav__item.active {
  background: var(--class-gradient);
  color: #fff;
  transform: scale(1.1);
}

.class-nav__label {
  position: absolute;
  right: calc(100% + 0.75rem);
  background: var(--black);
  color: #fff;
  padding: 0.35rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.class-nav__item:hover .class-nav__label {
  opacity: 1;
}

/* Hero Section */
.class-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.class-hero__bg {
  position: absolute;
  inset: 0;
}

.class-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.class-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.3) 0%,
    rgba(0,0,0,0.5) 50%,
    var(--bg-a) 100%
  );
}

.class-hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.class-hero__particles .particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--class-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: floatParticle 10s infinite ease-in-out;
}

@keyframes floatParticle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  50% { transform: translateY(-100px) translateX(20px); }
}

.class-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 900px;
}

.class-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--class-gradient);
  color: #fff;
  padding: 0.5rem 1.25rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.8s ease;
}

.class-hero__title {
  animation: fadeInUp 0.8s ease 0.2s both;
}

.class-hero__title-main {
  display: block;
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 800;
  color: #fff;
  text-shadow: 0 4px 30px rgba(0,0,0,0.3);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.class-hero__motto {
  display: block;
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  margin-top: 0.75rem;
  font-style: italic;
}

.class-hero__stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.class-stat {
  text-align: center;
}

.class-stat__number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.class-stat__label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.class-hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  animation: bounce 2s infinite;
}

.class-hero__scroll .material-icons {
  font-size: 2.5rem;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Styles */
.class-section {
  padding: 5rem 0;
  position: relative;
}

.class-section:nth-child(even) {
  background: rgba(0,0,0,0.02);
}

.class-section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.class-section__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background: var(--class-gradient);
  border-radius: 1rem;
  margin-bottom: 1rem;
}

.class-section__icon .material-icons {
  font-size: 2rem;
  color: #fff;
}

.class-section__title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 0.5rem;
}

.class-section__subtitle {
  color: var(--grey-li);
  font-size: 1.1rem;
}

/* About Section */
.class-about__grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  align-items: start;
}

.class-about__text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--grey-li);
}

.class-about__formed {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--class-gradient);
  color: #fff;
  border-radius: 2rem;
  font-weight: 500;
}

/* Teacher Card */
.class-teacher-card {
  position: relative;
  background: var(--white);
  border-radius: 1.5rem;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  border: 1px solid rgba(0,0,0,0.05);
  overflow: hidden;
}

.class-teacher-card__glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--class-gradient);
  opacity: 0.05;
  animation: rotateGlow 10s linear infinite;
}

@keyframes rotateGlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.class-teacher-card__photo {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  border: 4px solid var(--class-primary);
  box-shadow: 0 0 0 8px rgba(59, 130, 246, 0.1);
}

.class-teacher-card__photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--class-gradient);
}

.class-teacher-card__photo--placeholder .material-icons {
  font-size: 3rem;
  color: #fff;
}

.class-teacher-card__info {
  position: relative;
}

.class-teacher-card__role {
  display: inline-block;
  background: var(--class-gradient);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.class-teacher-card__name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
  margin: 0.75rem 0 0.25rem;
}

.class-teacher-card__subject {
  color: var(--grey-li);
  font-size: 0.95rem;
}

.class-teacher-card__quote {
  position: relative;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0,0,0,0.08);
  font-style: italic;
  color: var(--grey-li);
  font-size: 0.95rem;
  line-height: 1.6;
}

.class-teacher-card__quote .material-icons {
  position: absolute;
  top: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  padding: 0 0.5rem;
  color: var(--class-primary);
  font-size: 1.5rem;
}

/* Achievements */
.class-achievements__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.class-achievement-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.class-achievement-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.class-achievement-card__icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));
  border-radius: 0.75rem;
}

.class-achievement-card__icon .material-icons {
  font-size: 1.5rem;
  color: var(--class-primary);
}

.class-achievement-card__content {
  flex: 1;
  min-width: 0;
}

.class-achievement-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 0.25rem;
}

.class-achievement-card__participants {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--grey-li);
  margin: 0;
}

.class-achievement-card__participants .material-icons {
  font-size: 1rem;
}

.class-achievement-card__date {
  font-size: 0.75rem;
  color: var(--grey-li);
}

.class-achievement-card__medal {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.35rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: 0 1rem 0 0.75rem;
}

.class-achievement-card__medal--gold {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #fff;
}

.class-achievement-card__medal--silver {
  background: linear-gradient(135deg, #9ca3af, #6b7280);
  color: #fff;
}

.class-achievement-card__medal--bronze {
  background: linear-gradient(135deg, #d97706, #b45309);
  color: #fff;
}

.class-achievement-card__medal--mention,
.class-achievement-card__medal--winner,
.class-achievement-card__medal--participation {
  background: var(--class-gradient);
  color: #fff;
}

.class-achievement-card--linked {
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.class-achievement-card--linked:hover {
  border-color: var(--class-primary);
}

.class-achievement-card__link {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--class-gradient);
  border-radius: 50%;
  color: #fff;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s;
}

.class-achievement-card__link .material-icons {
  font-size: 1rem;
}

.class-achievement-card--linked:hover .class-achievement-card__link {
  opacity: 1;
  transform: scale(1);
}

/* Gallery */
.class-gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.class-gallery__item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 1rem;
  overflow: hidden;
  cursor: pointer;
}

.class-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.class-gallery__item:hover img {
  transform: scale(1.1);
}

.class-gallery__item:nth-child(1) {
  grid-column: span 2;
  grid-row: span 2;
}

.class-gallery__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1rem 1rem;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: #fff;
  font-size: 0.85rem;
  opacity: 0;
  transform: translateY(100%);
  transition: all 0.3s;
}

.class-gallery__item:hover .class-gallery__caption {
  opacity: 1;
  transform: translateY(0);
}

/* Interests */
.class-interests__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.class-interest-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--white);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
}

.class-interest-card__icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--class-gradient);
  border-radius: 0.75rem;
  color: #fff;
}

.class-interest-card__info {
  flex: 1;
  min-width: 0;
}

.class-interest-card__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.class-interest-card__desc {
  font-size: 0.8rem;
  color: var(--grey-li);
  margin: 0.25rem 0 0;
}

.class-interest-card__bar {
  flex: 1;
  max-width: 80px;
  height: 6px;
  background: rgba(0,0,0,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.class-interest-card__progress {
  height: 100%;
  background: var(--class-gradient);
  border-radius: 3px;
  transition: width 1s ease;
}

.class-interest-card__percent {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--class-primary);
  min-width: 40px;
  text-align: right;
}

/* Subjects */
.class-subjects {
  margin-top: 3rem;
}

.class-subjects__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.class-subjects__title .material-icons {
  color: var(--class-primary);
}

.class-subjects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.class-subject-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--white);
  border-radius: 1rem;
  border-left: 4px solid var(--class-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.class-subject-card__icon {
  font-size: 1.5rem;
  color: var(--class-primary);
}

.class-subject-card__info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.class-subject-card__teacher {
  font-size: 0.8rem;
  color: var(--class-primary);
  font-weight: 500;
}

.class-subject-card__info p {
  font-size: 0.85rem;
  color: var(--grey-li);
  margin: 0.35rem 0 0;
}

/* Timeline */
.class-timeline__wrapper {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}

.class-timeline__line {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--class-primary), var(--class-secondary));
  border-radius: 2px;
}

.class-timeline__item {
  position: relative;
  padding-bottom: 2rem;
  padding-left: 2rem;
}

.class-timeline__dot {
  position: absolute;
  left: -2rem;
  top: 0;
  width: 1.25rem;
  height: 1.25rem;
  background: var(--class-primary);
  border-radius: 50%;
  border: 3px solid var(--bg-a);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.class-timeline__item--milestone .class-timeline__dot {
  width: 2rem;
  height: 2rem;
  background: var(--class-gradient);
}

.class-timeline__dot .material-icons {
  font-size: 0.9rem;
  color: #fff;
}

.class-timeline__content {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
}

.class-timeline__date {
  display: inline-block;
  background: var(--class-gradient);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.class-timeline__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.class-timeline__desc {
  font-size: 0.9rem;
  color: var(--grey-li);
  margin: 0.5rem 0 0;
}

.class-timeline__img {
  width: 100%;
  border-radius: 0.75rem;
  margin-top: 1rem;
}

/* Team */
.class-council__title,
.class-testimonials__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.class-council__title .material-icons,
.class-testimonials__title .material-icons {
  color: var(--class-primary);
}

.class-council__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.class-member-card {
  text-align: center;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
  transition: transform 0.3s;
}

.class-member-card:hover {
  transform: translateY(-4px);
}

.class-member-card--council {
  border-top: 3px solid var(--class-primary);
}

.class-member-card__photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  border: 3px solid var(--class-primary);
}

.class-member-card__photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--class-gradient);
}

.class-member-card__photo--placeholder .material-icons {
  font-size: 2rem;
  color: #fff;
}

.class-member-card__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.class-member-card__role {
  display: inline-block;
  background: var(--class-gradient);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.35rem;
}

.class-member-card__highlight {
  font-size: 0.8rem;
  color: var(--grey-li);
  margin: 0.5rem 0 0;
}

/* Testimonials */
.class-testimonials {
  margin-top: 2rem;
}

.class-testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.class-testimonial-card {
  padding: 1.5rem;
  background: var(--white);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
}

.class-testimonial-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.class-testimonial-card__photo {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.class-testimonial-card__photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--class-gradient);
}

.class-testimonial-card__photo--placeholder .material-icons {
  font-size: 1.5rem;
  color: #fff;
}

.class-testimonial-card__header h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.class-testimonial-card__type {
  font-size: 0.75rem;
  color: var(--class-primary);
  font-weight: 500;
}

.class-testimonial-card__text {
  font-size: 0.95rem;
  color: var(--grey-li);
  line-height: 1.7;
  margin: 0;
  font-style: italic;
}

/* CTA Section */
.class-cta {
  padding: 4rem 0;
  background: var(--class-gradient);
  text-align: center;
}

.class-cta__content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin: 0;
}

.class-cta__content p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  margin: 0.5rem 0 2rem;
}

.class-cta__qr {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255,255,255,0.15);
  padding: 1.5rem;
  border-radius: 1rem;
  backdrop-filter: blur(10px);
}

.class-cta__qr img {
  border-radius: 0.5rem;
  background: #fff;
  padding: 8px;
}

.class-cta__qr span {
  color: rgba(255,255,255,0.9);
  font-size: 0.85rem;
}

/* Lightbox */
.class-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.class-lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.class-lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.class-lightbox__close:hover {
  background: rgba(255,255,255,0.2);
}

.class-lightbox__img {
  max-width: 90%;
  max-height: 80vh;
  border-radius: 0.5rem;
}

.class-lightbox__caption {
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
}

/* Empty State */
.class-empty {
  text-align: center;
  padding: 3rem;
  color: var(--grey-li);
}

.class-empty .material-icons {
  font-size: 3rem;
  opacity: 0.3;
  margin-bottom: 1rem;
}

.class-empty--large {
  padding: 6rem 2rem;
}

.class-empty--large h2 {
  font-size: 1.5rem;
  color: var(--black);
  margin-bottom: 0.5rem;
}

/* Class List Page */
.class-list-page {
  padding: 5rem 0;
  min-height: 70vh;
}

.class-list__header {
  text-align: center;
  margin-bottom: 3rem;
}

.class-list__title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--black);
}

.class-list__title .material-icons {
  font-size: 2.5rem;
  color: var(--blue);
}

.class-list__subtitle {
  color: var(--grey-li);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

.class-list__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.class-preview-card {
  position: relative;
  display: block;
  border-radius: 1.25rem;
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: 0 10px 40px rgba(0,0,0,0.1);
  transition: transform 0.4s, box-shadow 0.4s;
}

.class-preview-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.class-preview-card__bg {
  position: absolute;
  inset: 0;
  background: var(--card-gradient, linear-gradient(135deg, var(--card-primary), var(--card-secondary)));
}

.class-preview-card__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  transition: transform 0.5s, opacity 0.3s;
}

.class-preview-card:hover .class-preview-card__bg img {
  transform: scale(1.1);
  opacity: 0.3;
}

.class-preview-card__content {
  position: absolute;
  inset: 0;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
}

.class-preview-card__grade {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 0.35rem 0.85rem;
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  width: fit-content;
}

.class-preview-card__name {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  margin: 0;
}

.class-preview-card__motto {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  font-style: italic;
  margin: 0.25rem 0 0;
}

.class-preview-card__stats {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
}

.class-preview-card__arrow {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  color: #fff;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s;
}

.class-preview-card:hover .class-preview-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .class-about__grid {
    grid-template-columns: 1fr;
  }
  
  .class-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .class-gallery__item:nth-child(1) {
    grid-column: span 2;
    grid-row: span 1;
  }
}

@media (max-width: 768px) {
  .class-nav {
    right: auto;
    left: 50%;
    top: auto;
    bottom: 1rem;
    transform: translateX(-50%);
  }
  
  .class-nav__inner {
    flex-direction: row;
    border-radius: 2rem;
    padding: 0.5rem;
  }
  
  .class-nav__item {
    width: 2.5rem;
    height: 2.5rem;
  }
  
  .class-nav__label {
    display: none;
  }
  
  .class-hero__stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }
  
  .class-stat__number {
    font-size: 2rem;
  }
  
  .class-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .class-gallery__item:nth-child(1) {
    grid-column: span 2;
  }
  
  .class-section {
    padding: 3rem 0;
  }
  
  .class-section__title {
    font-size: 1.75rem;
  }
  
  .class-timeline__wrapper {
    padding-left: 1.5rem;
  }
  
  .class-timeline__line {
    left: 0.25rem;
  }
  
  .class-timeline__dot {
    left: -1.25rem;
  }
  
  .class-timeline__item--milestone .class-timeline__dot {
    left: -1.25rem;
  }
  
  .class-list__title {
    font-size: 1.75rem;
  }
  
  .class-cta__content h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .class-hero__title-main {
    font-size: 2.5rem;
  }
  
  .class-hero__motto {
    font-size: 1rem;
  }
  
  .class-interest-card {
    flex-wrap: wrap;
  }
  
  .class-interest-card__bar {
    order: 4;
    max-width: 100%;
    flex: 1 1 100%;
  }
  
  .class-interest-card__percent {
    order: 3;
  }
}