/* Groups 목록 페이지 스타일 */
.groups-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* 필터 컨테이너 */
.groups-filter-container {
  max-width: 1200px;
  margin: 0 auto 3rem auto;
  padding: 0 2rem;
}

.filter-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
}

.filter-buttons-left {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-buttons-right {
  position: absolute;
  right: 0;
  display: flex;
  align-items: center;
}

.generation-search-container {
  position: relative;
  display: flex;
  align-items: center;
}

.generation-search-input {
  padding: 0.8rem 1.2rem 0.8rem 2.5rem;
  border: 2px solid var(--main-color);
  border-radius: 2rem;
  font-size: 1.2rem;
  background: var(--white);
  color: var(--black);
  outline: none;
  transition: all 0.3s ease;
  min-width: 200px;
}

.generation-search-input:focus {
  border-color: var(--main-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.generation-search-icon {
  position: absolute;
  left: 0.8rem;
  color: var(--main-color);
  font-size: 1.2rem;
  pointer-events: none;
}

.filter-btn {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  border: 2px solid var(--border);
  border-radius: 2rem;
  background: var(--white);
  color: grey;
  font-size: 1.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.filter-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  border-color: var(--main-color);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--main-color), rgb(107, 107, 178));
  color: var(--white);
  border-color: var(--main-color);
  box-shadow: 0 4px 15px rgba(var(--main-color-rgb), 0.3);
}

.filter-btn.active:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 20px rgba(var(--main-color-rgb), 0.4);
}

.filter-btn i {
  font-size: 1.6rem;
  transition: transform 0.3s ease;
}

.filter-btn:hover i {
  transform: scale(1.1);
}

.filter-btn.active i {
  transform: scale(1.1);
}

/* 다크모드 스타일 */
.dark .filter-btn {
  background: var(--white);
  color: grey;
  border-color: var(--border);
  box-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
}

.dark .filter-btn:hover {
  border-color: var(--main-color);
  background: var(--white);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.dark .filter-btn.active {
  background: linear-gradient(135deg, var(--main-color), rgb(107, 107, 178));
  color: var(--black);
  border-color: var(--main-color);
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.dark .filter-btn.active:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .filter-buttons {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .filter-buttons-left {
    justify-content: center;
  }
  
  .filter-buttons-right {
    position: static;
    justify-content: center;
  }
  
  .filter-btn {
    min-width: 20rem;
    justify-content: center;
  }
  
  .generation-search-input {
    min-width: 18rem;
  }
}

@media (max-width: 480px) {
  .filter-btn {
    min-width: 18rem;
    padding: 0.8rem 1.5rem;
    font-size: 1.3rem;
  }
  
  .filter-btn i {
    font-size: 1.4rem;
  }
}

.groups-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: center;
}

.group-card {
  background: var(--white);
  border-radius: 1.5rem;
  box-shadow: 0 0.8rem 1.5rem rgba(0, 0, 0, 0.15);
  padding: 3rem;
  width: 450px;
  min-height: 350px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 2px solid var(--border);
}

.group-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
}

.group-header {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  margin-bottom: 2rem;
  gap: 1rem;
}


.group-status {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.group-status.active {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
  border: 2px solid #4CAF50;
}

.group-status.inactive {
  background: linear-gradient(135deg, #f44336, #d32f2f);
  color: white;
  border: 2px solid #f44336;
}

.group-status:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* 다크모드 스타일 */
.dark .group-status.active {
  background: linear-gradient(135deg, #66bb6a, #4caf50);
  border-color: #66bb6a;
}

.dark .group-status.inactive {
  background: linear-gradient(135deg, #ef5350, #f44336);
  border-color: #ef5350;
}

.list-group-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--black);
  margin: 0;
  line-height: 1.3;
  text-align: center;
}

.group-header-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.group-mentor {
  font-size: 1.3rem;
  color: var(--black);
  background: var(--light-bg);
  padding: 0.6rem 1rem;
  border-radius: 1.5rem;
  font-weight: 500;
  white-space: nowrap;
}


.group-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.group-image {
  width: 100%;
  height: 200px;
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: 2rem;
  background: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.group-image:hover img {
  transform: scale(1.05);
}

.group-description {
  font-size: 1.6rem;
  color: var(--black);
  line-height: 1.6;
  margin-bottom: 2rem;
  flex: 1;
}

.group-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.group-category-tag {
  background: var(--main-color);
  color: var(--black);
  padding: 0.6rem 1.2rem;
  border-radius: 1.5rem;
  font-size: 1.2rem;
  font-weight: 500;
}

.group-generation-tag {
  background: var(--light-bg);
  color: var(--black);
  padding: 0.6rem 1.2rem;
  border-radius: 1.5rem;
  font-size: 1.2rem;
  font-weight: 500;
  margin-left: 0.8rem;
  border: 1px solid var(--main-color);
}

.group-footer {
  margin-top: auto;
  padding-top: 2rem;
}

.group-more-btn {
  display: inline-block;
  background: var(--main-color);
  color: var(--white);
  padding: 1.2rem 2.4rem;
  border-radius: 1rem;
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 600;
  transition: all 0.3s ease;
  text-align: center;
  width: 100%;
}

.group-more-btn:hover {
  background: rgb(0, 0, 90);
  color: var(--white);
  transform: translateY(-2px);
}

/* 그룹이 없을 때 스타일 */
.no-groups-message {
  text-align: center;
  padding: 4rem 2rem;
}

.no-groups-message i {
  font-size: 4rem;
  color: #ccc;
  margin-bottom: 2rem;
}

.no-groups-message h3 {
  color: var(--black);
  margin-bottom: 1rem;
  font-size: 2rem;
}

.no-groups-message p {
  color: var(--black);
  font-size: 1.4rem;
  line-height: 1.6;
}

/* 다크모드 스타일 */
.dark .group-card {
  background: #2a2a2a;
  border-color: #444;
}

.dark .group-card:hover {
  box-shadow: 0 1rem 2rem rgba(255, 255, 255, 0.1);
}

.dark .list-group-title {
  color: var(--black);
}

.dark .group-mentor {
  background: #444;
  color: var(--black);
}

.dark .group-description {
  color: var(--black);
}

.dark .group-image {
  background: #444;
}

.dark .group-more-btn:hover {
  background: rgb(12, 0, 185);
  color: var(--black);
}

.dark .no-groups-message i {
  color: #666;
}

.dark .no-groups-message h3 {
  color: var(--black);
}

.dark .no-groups-message p {
  color: var(--black);
}

.dark .group-generation-tag {
  background: var(--light-bg);
  color: var(--black);
  border: 1px solid var(--main-color);
}

.dark .generation-search-input {
  background: var(--light-bg);
  color: var(--black);
  border-color: var(--main-color);
}

.dark .generation-search-input:focus {
  border-color: var(--main-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .groups-container {
    padding: 1rem;
  }

  .groups-grid {
    gap: 2rem;
  }

  .group-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
  }

  .list-group-title {
    font-size: 1.8rem;
  }

  .group-header {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 1rem;
  }

  .group-header-right {
    justify-content: center;
  }

  .group-mentor {
    font-size: 1.2rem;
  }

  .group-description {
    font-size: 1.4rem;
  }
}