/* Custom CSS for GlassPlay */

:root {
    --bg-base: #0b0d19;
    --bg-surface: rgba(20, 24, 46, 0.6);
    --bg-surface-hover: rgba(30, 36, 68, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-active: rgba(99, 102, 241, 0.4);
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: rgba(239, 68, 68, 0.15);
    
    --success: #10b981;
    
    --font-sans: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-sans);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* App Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar Styling */
.sidebar {
    width: 380px;
    background-color: rgba(13, 17, 34, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2rem;
    gap: 2rem;
    z-index: 10;
    flex-shrink: 0;
    overflow-y: auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.brand-text h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(to right, #ffffff, #c7d2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text span {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Upload Section */
.upload-section {
    width: 100%;
}

.upload-dropzone {
    border: 2px dashed var(--border-color);
    background-color: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary);
    background-color: var(--bg-surface-hover);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 12px;
    display: inline-block;
    transition: transform var(--transition-fast);
}

.upload-dropzone:hover .upload-icon {
    transform: translateY(-4px);
}

.upload-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 6px;
}

.upload-text span {
    color: var(--primary);
    text-decoration: underline;
}

.upload-hint {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
}

/* Settings Card */
.settings-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.section-title i {
    color: var(--primary);
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.setting-item label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.number-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.number-input-wrapper input[type="number"] {
    width: 100%;
    background-color: rgba(10, 12, 22, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition-fast);
}

.number-input-wrapper input[type="number"]:focus {
    border-color: var(--primary);
}

.number-input-wrapper .unit {
    position: absolute;
    right: 14px;
    color: var(--text-muted);
    font-size: 14px;
    pointer-events: none;
}

.setting-item select {
    width: 100%;
    background-color: rgba(10, 12, 22, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 14px;
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%239ca3af'%3E%3Cpath d='M12 16L6 10H18L12 16Z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
    transition: border-color var(--transition-fast);
}

.setting-item select:focus {
    border-color: var(--primary);
}

/* Custom Checkbox as Switch */
.checkbox-item {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .3s;
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

.toggle-switch input:checked + .slider {
    background-color: var(--primary);
    border-color: var(--primary);
}

.toggle-switch input:checked + .slider:before {
    transform: translateX(20px);
}

.toggle-label {
    font-size: 13px !important;
    color: var(--text-main) !important;
    user-select: none;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:disabled {
    background-color: rgba(99, 102, 241, 0.4);
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
    box-shadow: none;
}

.btn-danger-outline {
    background-color: transparent;
    color: var(--danger);
    border: 1px solid var(--danger-light);
}

.btn-danger-outline:hover:not(:disabled) {
    background-color: var(--danger-light);
    border-color: var(--danger);
}

.btn-danger-outline:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.footer {
    margin-top: auto;
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.6;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* Main Content Area Styling */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.main-header {
    height: 80px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2.5rem;
    flex-shrink: 0;
}

.header-info h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 2px;
}

.header-info p {
    font-size: 12px;
    color: var(--text-muted);
}

/* Gallery Wrapper */
.gallery-wrapper {
    flex-grow: 1;
    padding: 2.5rem;
    overflow-y: auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    min-height: 100%;
    align-content: start;
    position: relative;
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem;
    background-color: rgba(20, 24, 46, 0.2);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 4rem auto;
}

.empty-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-main);
}

.empty-state p {
    font-size: 14px;
    color: var(--text-muted);
    max-width: 380px;
    line-height: 1.6;
}

/* Image Card */
.image-card {
    position: relative;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.image-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-active);
    box-shadow: var(--shadow-lg);
}

.card-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.image-card:hover .card-thumbnail {
    transform: scale(1.08);
}

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 12, 22, 0.9) 0%, rgba(10, 12, 22, 0.3) 60%, rgba(10, 12, 22, 0) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 12px;
}

.image-card:hover .card-overlay {
    opacity: 1;
}

.card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.card-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background-color: rgba(13, 17, 34, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-btn:hover {
    color: var(--text-inverse);
    transform: scale(1.05);
}

.card-btn.delete-btn {
    color: var(--danger);
}

.card-btn.delete-btn:hover {
    background-color: var(--danger);
    color: var(--text-inverse);
    border-color: var(--danger);
}

.card-btn.play-from-btn:hover {
    background-color: var(--primary);
    color: var(--text-inverse);
    border-color: var(--primary);
}

.card-details {
    overflow: hidden;
}

.card-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-main);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.card-size {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Fullscreen Player Styles */
.fullscreen-player {
    position: fixed;
    inset: 0;
    background-color: #000000;
    z-index: 100;
    display: none;
    outline: none;
}

.fullscreen-player:focus {
    outline: none;
}

.slides-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    z-index: 1;
    pointer-events: none;
    transition: none; /* Transition is dynamically handled by class */
}

.slide.active {
    opacity: 1;
    z-index: 2;
    pointer-events: auto;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: var(--image-fit, cover);
    user-select: none;
    -webkit-user-drag: none;
}

/* Ken Burns dynamic zoom effect */
@keyframes kenburns-effect {
    0% {
        transform: scale(1) translate(0, 0);
    }
    50% {
        transform: scale(1.05) translate(-0.5%, -0.25%);
    }
    100% {
        transform: scale(1.1) translate(-1%, -0.5%);
    }
}

.kenburns-active .slide.active img {
    animation: kenburns-effect var(--slide-interval-ms, 3000ms) linear forwards;
}

/* Transition Types */

/* Fade Transition */
.transition-fade .slide {
    transition: opacity var(--slide-duration, 0.8s) ease-in-out;
}

/* Slide Transition */
.transition-slide .slide {
    transition: transform var(--slide-duration, 0.5s) cubic-bezier(0.25, 1, 0.5, 1), 
                opacity var(--slide-duration, 0.5s) ease-in-out;
    transform: translateX(100%);
}
.transition-slide .slide.active {
    transform: translateX(0);
}
.transition-slide .slide.prev-slide {
    transform: translateX(-100%);
    opacity: 0;
    z-index: 1;
}

/* Zoom Transition */
.transition-zoom .slide {
    transition: transform var(--slide-duration, 0.5s) cubic-bezier(0.25, 1, 0.5, 1), 
                opacity var(--slide-duration, 0.5s) ease-in-out;
    transform: scale(0.9);
}
.transition-zoom .slide.active {
    transform: scale(1);
}
.transition-zoom .slide.prev-slide {
    transform: scale(1.1);
    opacity: 0;
    z-index: 1;
}

/* No Transition */
.transition-none .slide {
    transition: none;
}

/* Player Interface Overlay */
.player-controls {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem;
    z-index: 10;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    opacity: 1;
}

.player-controls.hidden {
    opacity: 0;
}

/* Child elements must catch pointer events */
.player-header, .player-middle, .player-bottom {
    pointer-events: auto;
}

.player-header {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 2.5rem 3rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    pointer-events: none;
}

.slide-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-inverse);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    max-width: 70%;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.slide-index {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.player-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(15, 18, 36, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    pointer-events: auto;
    box-shadow: var(--shadow-lg);
}

.player-btn:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: scale(1.1);
}

.player-btn-inline {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
    pointer-events: auto;
}

.player-btn-inline:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
    transform: scale(1.08);
}

.player-btn-inline.play-pause-btn {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.player-btn-inline.play-pause-btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.player-bottom {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0) 100%);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 5rem 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--primary);
    transition: width 0.1s linear;
}

.player-bottom-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.quick-settings {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-badge {
    font-size: 11px;
    font-weight: 600;
    color: var(--success);
    background-color: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.speed-badge {
    color: var(--primary);
    background-color: var(--primary-light);
    border-color: var(--border-color-active);
}

.player-btn.exit-btn {
    width: auto;
    height: auto;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.player-btn.exit-btn:hover {
    background-color: var(--danger);
    border-color: var(--danger);
    color: var(--text-inverse);
    transform: none;
}

/* Mouse detector covers the entire screen, detects mouse movements to show controls */
.mouse-detector {
    position: absolute;
    inset: 0;
    z-index: 5;
    pointer-events: auto;
}

/* Custom Scrollbar for Sidebar and main content */
.sidebar::-webkit-scrollbar,
.gallery-wrapper::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track,
.gallery-wrapper::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb,
.gallery-wrapper::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb:hover,
.gallery-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        max-height: 45vh;
        overflow-y: auto;
        padding: 1.5rem;
    }
    .main-header {
        padding: 0 1.5rem;
    }
    .gallery-wrapper {
        padding: 1.5rem;
    }
}

@media (max-width: 640px) {
    .sidebar {
        max-height: 60vh;
    }
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 1rem;
    }
    .player-controls {
        padding: 1.5rem;
    }
    .player-header {
        padding: 1.5rem 1.5rem 3rem;
    }
    .player-middle {
        padding: 0 1.5rem;
    }
    .player-bottom {
        padding: 4rem 1.5rem 1.5rem;
    }
    .player-btn {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
    .player-btn.play-pause-btn {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    .player-btn.exit-btn {
        padding: 8px 14px;
    }
}