/* Root container covering full viewport and capturing events */
.ig-root {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0f172a;
    font-family: 'Inter', sans-serif;
    color: white;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}

/* Global body reset (in case other components loaded) */
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #0f172a;
    font-family: 'Inter', sans-serif;
    color: white;
}

/* Loader styles */
.ig-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0f172a;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease-out;
}
.ig-loader-content {
    text-align: center;
}
.ig-loader-title {
    font-size: 1.875rem; /* text-3xl */
    line-height: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.ig-loader-subtitle {
    color: rgb(156, 163, 175);
    margin-bottom: 1.5rem;
}
.ig-loader-bar {
    width: 200px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    margin: 20px auto;
    overflow: hidden;
}
.ig-loader-progress {
    height: 100%;
    width: 0%;
    background-color: #f472b6;
    transition: width 0.3s ease-out;
}
.ig-loading-text {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: rgb(156, 163, 175);
    margin-top: 0.5rem;
}

/* Header and Footer */
.ig-header, .ig-footer {
    position: fixed;
    width: 100%;
    padding: 20px;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    box-sizing: border-box;
}
.ig-header {
    top: 0;
}
.ig-footer {
    bottom: 0;
}
.ig-header-item, .ig-footer-item {
    pointer-events: auto;
}
.ig-header-title {
    font-size: 1.25rem;
    line-height: 1.75rem;
    font-weight: 700;
}
.ig-footer-text {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: rgb(156, 163, 175);
}
.ig-btn {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.2s ease;
}
.ig-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Info panel */
.ig-info-panel {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    padding: 10px 20px;
    border-radius: 20px;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.ig-info-panel.visible {
    opacity: 1;
}

/* Gallery container and items */
.ig-gallery-container {
    position: absolute;
    width: 100%;
    height: 100%;
    cursor: grab;
    pointer-events: none;
    /* ensure gallery is visible after stacking animation */
    opacity: 1 !important;
    /* Add will-change for better performance during dragging */
    will-change: transform;
    /* transition: opacity var(--gallery-fade-duration, 500ms) ease-in-out; */
}
.ig-gallery-container:active {
    cursor: grabbing;
}
.ig-gallery-container.visible {
    opacity: 1;
}
.ig-gallery-item {
    position: absolute;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    will-change: transform;
    cursor: pointer;
    pointer-events: auto;
}
.ig-gallery-item-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    position: relative;
}
.ig-gallery-item-number {
    position: absolute !important;
    bottom: 10px !important;
    right: 10px !important;
    background-color: rgba(0, 0, 0, 0.7) !important;
    color: white !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    font-size: 12px !important;
    z-index: 999 !important;
    display: block !important;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    pointer-events: none;
}

.ig-gallery-item-number:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Fullscreen view */
.ig-fullscreen-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.ig-fullscreen-view.active {
    opacity: 1;
    pointer-events: auto;
}
.ig-fullscreen-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}
.ig-fullscreen-view.active .ig-fullscreen-content {
    transform: scale(1);
}
.ig-fullscreen-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.ig-fullscreen-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}
.ig-fullscreen-close::before,
.ig-fullscreen-close::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: white;
}
.ig-fullscreen-close::before { transform: rotate(45deg); }
.ig-fullscreen-close::after  { transform: rotate(-45deg); }

.ig-expand-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.10) 100%);
  border: 1.5px solid rgba(255,255,255,0.25);
  box-shadow: 0 4px 24px 0 rgba(0,0,0,0.18), 0 1.5px 8px 0 rgba(255,255,255,0.10) inset;
  backdrop-filter: blur(8px) saturate(1.5);
  -webkit-backdrop-filter: blur(8px) saturate(1.5);
  padding: 0;
  box-sizing: border-box;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: background 0.3s, border 0.3s, box-shadow 0.3s;
}
.ig-expand-btn:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.18) 100%);
  border: 2px solid rgba(255,255,255,0.35);
  box-shadow: 0 6px 32px 0 rgba(0,0,0,0.22), 0 2px 12px 0 rgba(255,255,255,0.13) inset;
}

.ig-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.10) 100%);
  border: 1.5px solid rgba(255,255,255,0.25);
  box-shadow: 0 4px 24px 0 rgba(0,0,0,0.18), 0 1.5px 8px 0 rgba(255,255,255,0.10) inset;
  backdrop-filter: blur(8px) saturate(1.5);
  -webkit-backdrop-filter: blur(8px) saturate(1.5);
  padding: 0;
  padding-left: 4px;
  box-sizing: border-box;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: background 0.3s, border 0.3s, box-shadow 0.3s;
}
.ig-play-btn:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.18) 100%);
  border: 2px solid rgba(255,255,255,0.35);
  box-shadow: 0 6px 32px 0 rgba(0,0,0,0.22), 0 2px 12px 0 rgba(255,255,255,0.13) inset;
}

/* Stacking animation */
.ig-stacking-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.stack-item {
  position: absolute;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  will-change: transform;
  transition: transform var(--stack-duration, 1000ms) ease-in-out;
}