:root {
    --bg-color: #f8fafc;
    --panel-bg: rgba(255, 255, 255, 0.6);
    --panel-border: rgba(0, 0, 0, 0.08);
    --primary-color: #ec4899;
    --primary-hover: #db2777;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --input-bg: rgba(255, 255, 255, 0.9);
    --danger-color: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #fdf2f8 0%, #fbcfe8 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-container {
    width: 100%;
    max-width: 1100px;
    padding: 2rem;
}

.app-header {
    margin-bottom: 2rem;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.app-nav {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-btn.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.brand h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.brand p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.highlight {
    color: var(--primary-color);
}

.app-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.upload-zone {
    border: 2px dashed var(--panel-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.upload-zone:hover .upload-icon {
    color: var(--primary-color);
}

.browse-link {
    color: var(--primary-color);
    text-decoration: underline;
}

.file-name {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

input[type="number"], input[type="text"], input[type="password"], select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    outline: none;
}

input[type="number"]:focus, input[type="text"]:focus, input[type="password"]:focus, select:focus {
    border-color: var(--primary-color);
}

.segmented-control {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    width: 100%;
}

.segment-btn {
    flex: 1;
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.1);
    color: #0f172a;
    padding: 0.75rem 0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.segment-btn:hover {
    border-color: var(--primary-color);
}

.segment-btn.active {
    background: #111827;
    color: #ffffff;
    border-color: #111827;
}

.label-with-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-tooltip {
    color: var(--text-secondary);
    cursor: help;
    display: inline-flex;
    transition: color 0.2s ease;
}

.info-tooltip:hover {
    color: var(--primary-color);
}

.preview-container {
    width: 100%;
    aspect-ratio: 1;
    background: rgba(0,0,0,0.4);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    border: 1px solid var(--panel-border);
    overflow: hidden;
    position: relative;
}

.preview-placeholder {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem;
}

#previewImage {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
    transition: opacity 0.3s ease;
}

.hidden {
    display: none !important;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.actions-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn {
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

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

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

.primary-btn:not(:disabled):hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--primary-color);
}

.primary-btn:not(:disabled):active {
    transform: translateY(0);
}

.secondary-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--panel-border);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.danger-btn {
    background: transparent;
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.danger-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
}

/* Gallery Styles */
.gallery-section {
    padding: 2rem;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.search-box input {
    width: 300px;
    background: var(--input-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    outline: none;
}

.search-box input:focus {
    border-color: var(--primary-color);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.gallery-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.gallery-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.gallery-img-container {
    width: 100%;
    aspect-ratio: 1;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.gallery-img-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
}

.gallery-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.gallery-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.gallery-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.gallery-info .btn {
    margin-top: auto;
    width: 100%;
    justify-content: center;
}

.gallery-loading, .gallery-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--panel-border);
}

.pagination-container .btn {
    width: auto;
    padding: 0.5rem 1.5rem;
}

.page-info {
    color: var(--text-secondary);
    font-weight: 500;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.download-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.download-icon-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.like-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.like-count {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.like-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
}

.like-btn:hover {
    color: var(--danger-color);
    transform: scale(1.1);
}

.like-btn.liked {
    color: var(--danger-color);
}
.like-btn.liked svg {
    fill: var(--danger-color);
}

.est-time {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .gallery-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .search-box input {
        width: 100%;
    }
}