:root {
    --bg-main: #1a1d21;
    --bg-secondary: #2c313a;
    --bg-tertiary: #22262e;
    --text-primary: #d1d5db;
    --text-secondary: #9ca3af;
    --accent-primary: #34d399;
    --accent-primary-hover: #6ee7b7;
    --border-color: #4b5563;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.logo h2 {
    font-weight: 600;
    color: var(--accent-primary);
}

.tagline p {
    font-style: italic;
    color: var(--text-secondary);
}

.app-body {
    display: flex;
    flex-grow: 1;
    overflow: hidden; /* Prevent scrollbars on the main body */
}

.sidebar {
    width: 280px;
    background-color: var(--bg-tertiary);
    padding: 1.5rem;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-section h3 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.library-list, .project-tree {
    list-style: none;
}

.library-list li, .project-tree li {
    padding: 0.5rem;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.library-list li.active {
    background-color: var(--accent-primary);
    color: var(--bg-main);
    font-weight: 600;
}

.badge {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.1rem 0.4rem;
    font-size: 0.8rem;
    border-radius: 5px;
}

.library-list li.active .badge {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.date-filter-form label {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: block;
}

.date-filter-form input[type="date"] {
    width: 100%;
    padding: 0.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.form-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-primary, .btn-secondary {
    flex-grow: 1;
    padding: 0.6rem;
    border-radius: 5px;
    border: none;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--bg-main);
}

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

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

.projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.add-project-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 24px;
    height: 24px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 20px;
}

.project-search, .gallery-search {
    width: 100%;
    padding: 0.6rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.main-content {
    flex-grow: 1;
    padding: 1.5rem 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.uploader-section .form-group {
    margin-bottom: 1rem;
}

.uploader-section label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.uploader-section select {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-primary);
}

.upload-areas {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1rem;
}

.drop-zone, .capture-zone {
    background-color: var(--bg-tertiary);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
}

.upload-icon, .camera-icon {
    font-size: 2.5rem;
    color: var(--text-secondary);
}

.gallery-section h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.photo-count {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}

.photo-card {
    background-color: var(--bg-tertiary);
    border-radius: 5px;
    overflow: hidden;
}

.photo-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.photo-card .photo-name {
    padding: 0.8rem;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}