/**
 * Slideshow Application Styles
 * Purple/White Branding - Mobile First
 */

:root {
    --primary-color: #8B5CF6;
    --secondary-color: #FFFFFF;
    --accent-color: #C4B5FD;
    --dark-color: #6D28D9;
    --gray-light: #F3F4F6;
    --gray-medium: #9CA3AF;
    --gray-dark: #374151;
    --error-color: #EF4444;
    --success-color: #10B981;
    --transition-speed: 1s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--gray-light);
    color: var(--gray-dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
    color: var(--secondary-color);
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
}

.header p {
    text-align: center;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* Upload Area */
.upload-area {
    min-height: 60vh;
    border: 3px dashed var(--primary-color);
    border-radius: 16px;
    background-color: var(--secondary-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    touch-action: manipulation;
}

.upload-area:hover,
.upload-area.drag-over {
    background-color: var(--accent-color);
    border-color: var(--dark-color);
    transform: scale(1.02);
}

.upload-area.drag-over {
    background-color: var(--accent-color);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-text {
    font-size: 1.25rem;
    color: var(--dark-color);
    font-weight: 600;
    text-align: center;
}

.upload-subtext {
    font-size: 0.875rem;
    color: var(--gray-medium);
    margin-top: 0.5rem;
    text-align: center;
}

/* File Input */
#fileInput {
    display: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    touch-action: manipulation;
    min-height: 48px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: var(--dark-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--secondary-color);
}

.btn-danger {
    background-color: var(--error-color);
    color: var(--secondary-color);
}

.btn-large {
    min-width: 100px;
    min-height: 60px;
    font-size: 1.25rem;
    padding: 1rem 2rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Preview Grid */
.preview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

@media (min-width: 640px) {
    .preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .preview-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.preview-item {
    background-color: var(--secondary-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.preview-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.preview-video-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    margin-bottom: 0.5rem;
}

.preview-video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.preview-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    pointer-events: none;
}

.preview-play-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(139, 92, 246, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.preview-filename {
    font-size: 0.875rem;
    color: var(--gray-dark);
    margin-bottom: 0.5rem;
    word-break: break-all;
}

.preview-progress {
    width: 100%;
    height: 8px;
    background-color: var(--gray-light);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.preview-progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.preview-status {
    font-size: 0.75rem;
    color: var(--gray-medium);
}

/* Asset Grid (Moderation) */
.filter-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.filter-tab {
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary-color);
    color: var(--gray-dark);
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.3s ease;
    min-height: 48px;
}

.filter-tab.active {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
}

.filter-tab:hover:not(.active) {
    border-color: var(--primary-color);
}

.asset-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .asset-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .asset-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.asset-card {
    background-color: var(--secondary-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.asset-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.asset-preview-container {
    position: relative;
    width: 100%;
    margin-bottom: 1rem;
}

.asset-preview {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    background-color: var(--gray-light);
    display: block;
}

.asset-preview video {
    cursor: pointer;
}

.asset-error {
    width: 100%;
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-light);
    border-radius: 8px;
    color: var(--gray-dark);
    gap: 1rem;
}

.asset-error a {
    color: var(--primary);
    text-decoration: underline;
}

.asset-info {
    margin-bottom: 1rem;
}

.asset-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.asset-filename {
    font-size: 0.875rem;
    color: var(--gray-dark);
    font-weight: 600;
    word-break: break-all;
    flex: 1;
}

.asset-meta {
    font-size: 0.75rem;
    color: var(--gray-medium);
}

/* Kebab Menu */
.kebab-menu {
    position: relative;
    display: flex;
    align-items: center;
}

.kebab-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--gray-medium);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
    transition: color 0.2s ease, background-color 0.2s ease;
    border-radius: 4px;
    min-width: 32px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kebab-btn:hover {
    color: var(--primary-color);
    background-color: var(--gray-light);
}

.kebab-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--secondary-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 150px;
    z-index: 100;
    display: none;
    margin-top: 0.25rem;
    overflow: hidden;
}

.kebab-dropdown.active {
    display: block;
}

.kebab-item {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--gray-dark);
    text-decoration: none;
    font-size: 0.875rem;
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.kebab-item:hover {
    background-color: var(--gray-light);
    color: var(--primary-color);
}

.asset-actions {
    display: flex;
    gap: 0.5rem;
}

.asset-actions .btn {
    flex: 1;
}

/* Slideshow */
.slideshow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide img,
.slide video {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Transition: Fade */
.slide-fade-enter {
    opacity: 0;
}

.slide-fade-active {
    opacity: 1;
    transition: opacity var(--transition-speed) ease;
}

.slide-fade-exit {
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

/* Transition: Slide Left */
.slide-left-enter {
    transform: translateX(100%);
}

.slide-left-active {
    transform: translateX(0);
    transition: transform var(--transition-speed) ease;
}

.slide-left-exit {
    transform: translateX(-100%);
    transition: transform var(--transition-speed) ease;
}

/* Transition: Slide Right */
.slide-right-enter {
    transform: translateX(-100%);
}

.slide-right-active {
    transform: translateX(0);
    transition: transform var(--transition-speed) ease;
}

.slide-right-exit {
    transform: translateX(100%);
    transition: transform var(--transition-speed) ease;
}

/* Transition: Slide Up */
.slide-up-enter {
    transform: translateY(100%);
}

.slide-up-active {
    transform: translateY(0);
    transition: transform var(--transition-speed) ease;
}

.slide-up-exit {
    transform: translateY(-100%);
    transition: transform var(--transition-speed) ease;
}

/* Transition: Slide Down */
.slide-down-enter {
    transform: translateY(-100%);
}

.slide-down-active {
    transform: translateY(0);
    transition: transform var(--transition-speed) ease;
}

.slide-down-exit {
    transform: translateY(100%);
    transition: transform var(--transition-speed) ease;
}

/* Transition: Zoom In */
.slide-zoom-enter {
    transform: scale(0);
    opacity: 0;
}

.slide-zoom-active {
    transform: scale(1);
    opacity: 1;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.slide-zoom-exit {
    transform: scale(0);
    opacity: 0;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* Transition: Zoom Out */
.slide-zoomOut-enter {
    transform: scale(2);
    opacity: 0;
}

.slide-zoomOut-active {
    transform: scale(1);
    opacity: 1;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.slide-zoomOut-exit {
    transform: scale(2);
    opacity: 0;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* Transition: Rotate */
.slide-rotate-enter {
    transform: rotate(90deg) scale(0);
    opacity: 0;
}

.slide-rotate-active {
    transform: rotate(0deg) scale(1);
    opacity: 1;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.slide-rotate-exit {
    transform: rotate(-90deg) scale(0);
    opacity: 0;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* Transition: Flip */
.slide-flip-enter {
    transform: rotateY(90deg);
    opacity: 0;
}

.slide-flip-active {
    transform: rotateY(0deg);
    opacity: 1;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.slide-flip-exit {
    transform: rotateY(-90deg);
    opacity: 0;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* Transition: Cube */
.slide-cube-enter {
    transform: rotateY(90deg) translateZ(-50vw);
    opacity: 0;
}

.slide-cube-active {
    transform: rotateY(0deg) translateZ(0);
    opacity: 1;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.slide-cube-exit {
    transform: rotateY(-90deg) translateZ(-50vw);
    opacity: 0;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* Slideshow Controls */
.slideshow-controls {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 1rem;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.control-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: rgba(139, 92, 246, 0.9);
    color: var(--secondary-color);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.control-btn:hover {
    background-color: rgba(109, 40, 217, 0.9);
    transform: scale(1.1);
}

/* Settings Overlay */
.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
}

.settings-overlay.active {
    display: flex;
}

.settings-panel {
    background-color: var(--secondary-color);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.settings-header h2 {
    color: var(--dark-color);
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-medium);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
}

.setting-group {
    margin-bottom: 1.5rem;
}

.setting-label {
    display: block;
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 0.5rem;
}

.setting-input,
.setting-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.setting-input:focus,
.setting-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Range Slider Styling */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: var(--gray-light);
    border-radius: 4px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--dark-color);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: background-color 0.3s ease;
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--dark-color);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--gray-medium);
}

.loading-spinner {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Messages */
.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.message-success {
    background-color: #D1FAE5;
    color: #065F46;
}

.message-error {
    background-color: #FEE2E2;
    color: #991B1B;
}

.message-info {
    background-color: #DBEAFE;
    color: #1E40AF;
}

/* Login Form */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    background-color: var(--secondary-color);
    border-radius: 16px;
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.login-card h2 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none !important;
}

/* Lightbox */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 2rem;
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.lightbox-media-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.lightbox-media {
    max-width: 100%;
    max-height: calc(90vh - 150px);
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-info {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
    color: white;
    text-align: center;
    min-width: 300px;
}

.lightbox-filename {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.lightbox-counter {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.lightbox-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(139, 92, 246, 0.9);
    color: white;
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.lightbox-nav:hover {
    background-color: rgba(109, 40, 217, 0.9);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav-prev {
    left: 2rem;
}

.lightbox-nav-next {
    right: 2rem;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Responsive */
@media (max-width: 640px) {
    .header h1 {
        font-size: 1.5rem;
    }

    .upload-area {
        min-height: 50vh;
        padding: 1.5rem;
    }

    .upload-icon {
        font-size: 3rem;
    }

    .upload-text {
        font-size: 1rem;
    }

    .slideshow-controls {
        bottom: 1rem;
        right: 1rem;
    }

    .control-btn {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .settings-panel {
        padding: 1.5rem;
    }

    .lightbox-overlay {
        padding: 1rem;
    }

    .lightbox-nav {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .lightbox-nav-prev {
        left: 0.5rem;
    }

    .lightbox-nav-next {
        right: 0.5rem;
    }

    .lightbox-media {
        max-height: calc(90vh - 200px);
    }
}