/* =========================================
   SFS Lengpui Gallery — Premium Album Style
   ========================================= */

/* Hide Unicamp theme's page title bar background on gallery page */
.page-title-bar-inner {
  display: none !important;
}

/* ---------- Hero Banner ---------- */
.photo-gallery-hero {
  background: linear-gradient(135deg, #2a4880 0%, #1f3561 100%);
  padding: 60px 0;
  text-align: center;
  color: #fff;
}

.photo-gallery-hero h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  font-weight: 700;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 2px;
  animation: fadeInDown 1s ease-out;
}

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

/* ---------- Gallery Container ---------- */
.sfs-gallery-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
}

.sfs-gallery-container .sfs-gallery-title {
  text-align: center;
  color: #111;
  margin-bottom: 30px;
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: bold;
}

/* ---------- Tabs Navigation ---------- */
.sfs-gallery-tabs {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 40px;
}

.sfs-tab-btn {
  background: #f8f9fa;
  border: 1px solid #ddd;
  padding: 0 30px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #555;
  cursor: pointer;
  border-radius: 50px;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  font-family: inherit;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.sfs-tab-btn:hover {
  background: #fff;
  color: #2a4880;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sfs-tab-btn.active {
  background: #2a4880;
  color: #fff;
  border-color: #2a4880;
  box-shadow: 0 8px 20px rgba(42, 72, 128, 0.3);
}

.sfs-tab-content {
  display: none;
}

.sfs-tab-content.active {
  display: block;
  animation: sfsFadeIn 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

@keyframes sfsFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Video Wrapper */
.sfs-video-wrapper iframe,
.sfs-video-wrapper video {
  border-radius: 12px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ---------- Album / Folder Grid ---------- */
.sfs-folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
  padding: 10px;
}

.sfs-folder-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  cursor: pointer;
  background: #fff;
  border: 1px solid #eee;
  display: flex !important;
  flex-direction: column !important;
  gap: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
}

.sfs-folder-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.sfs-folder-item img {
  width: 100% !important;
  height: 320px !important;
  object-fit: cover !important;
  object-position: top !important;
  display: block !important;
  pointer-events: none;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
}

.sfs-folder-item .sfs-event-name {
  padding: 12px 10px !important;
  text-align: center !important;
  color: #333;
  font-weight: bold;
  background: #fff;
  font-size: 0.95rem !important;
  line-height: 1.3 !important;
  position: relative;
  z-index: 2;
  font-family: "Georgia", serif !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition:
    background 0.3s ease,
    color 0.3s ease;
  pointer-events: none;
  margin-top: -22px !important;
  border: none !important;
  flex-grow: 1;
}

.sfs-folder-item:hover .sfs-event-name {
  color: #fff;
  background: #546381;
}

/* ---------- Folder / Album Modal ---------- */
.sfs-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.9);
  z-index: 999999;
  overflow-y: auto;
  padding: 20px;
  backdrop-filter: blur(5px);
}

.sfs-modal.sfs-active {
  display: block;
}

.sfs-modal-content {
  max-width: 1200px;
  width: 95%;
  margin: 20px auto;
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  position: relative;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  animation: sfsModalFadeIn 0.3s ease;
  pointer-events: all;
}

@keyframes sfsModalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.sfs-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid #eee;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100000;
}

.sfs-modal-content h2 {
  color: #333;
  margin: 0;
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  font-weight: 600;
  padding-right: 20px;
}

.sfs-modal-images {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
  padding: 10px;
  padding-right: 15px;
  will-change: scroll-position;
}

.sfs-modal-images img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.sfs-modal-images img:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Close button */
.sfs-close {
  color: #333;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 5px 15px;
  border-radius: 5px;
  background: #ffc107;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  line-height: 1;
  position: relative;
  z-index: 100001;
  flex-shrink: 0;
}

.sfs-close:hover {
  color: #fff;
  background: #ff4444;
}

/* Custom Scrollbar */
.sfs-modal-images::-webkit-scrollbar {
  width: 10px;
}

.sfs-modal-images::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 5px;
}

.sfs-modal-images::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 5px;
  border: 2px solid #f1f1f1;
}

.sfs-modal-images::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ---------- Fullscreen Image Modal ---------- */
.sfs-fullscreen-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  z-index: 100000;
  justify-content: center;
  align-items: center;
}

.sfs-fullscreen-content {
  position: relative;
  width: 90%;
  height: 90vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.sfs-fullscreen-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

.sfs-fullscreen-close {
  position: fixed;
  top: 20px;
  right: 20px;
  color: #fff;
  font-size: 40px;
  cursor: pointer;
  z-index: 100001;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  border: none;
  transition: all 0.3s ease;
}

.sfs-fullscreen-close:hover {
  background: #ff4444;
  transform: rotate(90deg);
}

/* Navigation buttons */
.sfs-nav-button {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: #ffc107;
  border: none;
  color: #fff;
  font-size: 2rem;
  padding: 3px 10px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.3s ease;
  z-index: 100001;
}

.sfs-nav-button:hover {
  background: rgba(255, 255, 255, 0.2);
}

.sfs-nav-prev {
  left: 20px;
}

.sfs-nav-next {
  right: 20px;
}

/* ---------- Body lock when modal open ---------- */
body.sfs-modal-open {
  overflow: hidden;
}

.sfs-modal.sfs-active {
  pointer-events: all;
}

.sfs-fullscreen-modal.sfs-active {
  pointer-events: all;
}

/* ---------- Responsive: XL screens ---------- */
@media (min-width: 1200px) {
  .sfs-folder-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }

  .sfs-folder-item .sfs-event-name {
    font-size: 1.2rem !important;
  }

  .sfs-modal-content {
    max-width: 1400px;
    padding: 30px;
  }

  .sfs-modal-images {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }

  .sfs-modal-images img {
    height: 160px;
  }

  .sfs-modal-content h2 {
    font-size: 2rem;
  }
}

/* ---------- Responsive: Tablets ---------- */
@media (max-width: 992px) {
  .sfs-modal-images {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .sfs-modal-images img {
    height: 250px;
  }
}

@media (max-width: 768px) {
  .sfs-folder-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }

  .sfs-folder-item img {
    height: 160px !important;
  }

  .sfs-modal-images {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .sfs-modal-images img {
    height: 200px;
  }
}

/* ---------- Responsive: Small phones ---------- */
@media (max-width: 576px) {
  .sfs-modal-images {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .sfs-modal-images img {
    height: 200px;
  }

  .sfs-modal-content {
    padding: 15px;
    margin: 10px;
  }

  .sfs-nav-button {
    padding: 15px;
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .sfs-folder-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .sfs-folder-item img {
    height: 140px !important;
  }

  .sfs-modal-images {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .sfs-modal-images img {
    height: 180px;
  }

  .sfs-modal-content {
    padding: 15px;
    margin: 10px;
  }
}