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

:root {
    /* Color Palette - Orange & White/Pastel Theme */
    --primary: #FF8C42;
    --primary-dark: #FF6B1A;
    --primary-light: #FFB88C;
    --secondary: #FFA07A;
    --accent: #FFDAB3;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;

    /* Background Colors - Light & Airy */
    --bg-primary: #FFF8F0;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #FFE5CC;
    --surface: rgba(255, 140, 66, 0.05);
    --surface-hover: rgba(255, 140, 66, 0.1);

    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;

    /* Gradients - Warm Orange Tones */
    --gradient-primary: linear-gradient(135deg, #FF8C42 0%, #FFA07A 100%);
    --gradient-secondary: linear-gradient(135deg, #FFB88C 0%, #FFDAB3 100%);
    --gradient-accent: linear-gradient(135deg, #FF8C42 0%, #FFD4B3 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);

    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;

    /* Shadows - Softer for light theme */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(255, 140, 66, 0.3);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    font-size: 15px;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 140, 66, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 160, 122, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 218, 179, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 15s ease-in-out infinite;
}

@keyframes backgroundPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 2px solid rgba(255, 140, 66, 0.2);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-md);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid rgba(255, 140, 66, 0.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-5px);
    }
}

.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--surface-hover);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--spacing-lg) 0;
    overflow-y: auto;
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.nav-link:hover {
    background: var(--surface);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--surface-hover);
    color: var(--primary-light);
}

.nav-link.active::before {
    transform: scaleY(1);
}

.nav-icon {
    font-size: 1.25rem;
}

.nav-text {
    font-weight: 500;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.user-details {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-base);
}

/* Top Header */
.top-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.page-title {
    font-size: 1.875rem;
    font-weight: 600;
    flex: 1;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stats-badge {
    background: var(--surface);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.badge-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.badge-value {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 1.125rem;
}

/* View Container */
.view-container {
    display: none;
    padding: var(--spacing-xl);
    animation: fadeIn 0.5s ease;
}

.view-container.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dashboard View */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.stat-icon {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: var(--radius-lg);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quick-action-btn {
    margin-top: var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-base);
    font-family: inherit;
}

.quick-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Recent Activity */
.recent-activity {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.recent-activity h2 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.recent-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

/* Upload Card */
.upload-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 800px;
    margin: 0 auto;
}

.upload-card h2 {
    font-size: 1.875rem;
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--surface);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.drop-zone:hover::before {
    left: 100%;
}

.drop-zone:hover {
    border-color: var(--primary-light);
    background: var(--surface-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(20, 184, 166, 0.1);
    transform: scale(1.02);
}

.drop-zone-content {
    position: relative;
    z-index: 1;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.drop-zone-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.drop-zone-subtext {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.browse-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    font-family: inherit;
}

.browse-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.file-info {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Preview Container */
.preview-container {
    margin-top: var(--spacing-lg);
    animation: fadeIn 0.5s ease;
}

.preview-container h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.preview-wrapper {
    position: relative;
    display: inline-block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 100%;
}

.preview-wrapper img {
    max-width: 100%;
    max-height: 400px;
    display: block;
    border-radius: var(--radius-lg);
}

.remove-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.remove-btn:hover {
    background: var(--error);
    transform: rotate(90deg) scale(1.1);
}

.preview-info {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Multi-file Preview Grid */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.preview-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    aspect-ratio: 1;
    animation: scaleIn 0.3s ease;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-item-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 0.5rem;
    font-size: 0.75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.remove-preview-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(5px);
    opacity: 0;
}

.preview-item:hover .remove-preview-btn {
    opacity: 1;
}

.remove-preview-btn:hover {
    background: var(--error);
    transform: rotate(90deg) scale(1.1);
}

.clear-all-btn {
    margin-top: var(--spacing-sm);
    background: transparent;
    color: var(--error);
    border: 2px solid var(--error);
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    width: 100%;
}

.clear-all-btn:hover {
    background: var(--error);
    color: white;
}

.upload-btn {
    margin-top: var(--spacing-md);
    background: var(--gradient-success);
    color: white;
    border: none;
    padding: 1rem 3rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    font-family: inherit;
    width: 100%;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.upload-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-loader {
    display: inline-block;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Status Message */
.status-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.status-message.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.status-message.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
    border: 1px solid var(--error);
}

/* Gallery Section */
.gallery-header-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.gallery-header-section h2 {
    font-size: 1.875rem;
    font-weight: 600;
}

.gallery-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.image-count {
    color: var(--text-muted);
    font-size: 1rem;
    background: var(--surface);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.refresh-btn {
    background: var(--gradient-accent);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-base);
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.refresh-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
    font-size: 1.125rem;
}

/* Gallery Card */
.gallery-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.gallery-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.gallery-card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-card:hover .gallery-card-image {
    transform: scale(1.1);
}

.gallery-card-content {
    padding: var(--spacing-md);
}

.gallery-card-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gallery-card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.gallery-card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.action-btn {
    flex: 1;
    padding: 0.5rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
    font-family: inherit;
}

.favorite-btn {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-size: 1.25rem;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
}

.favorite-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary);
    animation: heartBeat 0.3s ease;
}

@keyframes heartBeat {

    0%,
    100% {
        transform: scale(1);
    }

    25% {
        transform: scale(1.3);
    }

    50% {
        transform: scale(0.9);
    }

    75% {
        transform: scale(1.1);
    }
}

.view-btn {
    background: var(--gradient-accent);
    color: white;
}

.delete-btn {
    background: linear-gradient(135deg, #FFA07A 0%, #FF8C42 100%);
    color: white;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Like Display */
.like-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
    padding: 0.5rem;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.like-btn {
    background: transparent;
    border: none;
    color: #FF6B6B;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0.25rem;
}

.like-btn:hover {
    transform: scale(1.2);
}

.like-count {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.like-display.liked .like-btn {
    animation: likeAnimation 0.6s ease;
}

@keyframes likeAnimation {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.3);
    }
}


/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 240px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .top-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .page-title {
        font-size: 1.5rem;
    }

    .view-container {
        padding: var(--spacing-lg);
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .stats-badge {
        display: none;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .recent-images-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}