/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4ecdc4;
    --warning-color: #feca57;
    --danger-color: #ff6b6b;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Top Bar */
.top-bar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

.app-name {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--gray-600);
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* Profile Icon */
.profile-icon {
    position: relative;
    cursor: pointer;
    padding: 0.75rem;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-600);
    transition: var(--transition);
}

.profile-icon:hover {
    background: var(--primary-color);
    color: var(--white);
}

.profile-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.profile-icon:hover .profile-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.profile-dropdown button,
.profile-dropdown .import-btn {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    color: var(--dark-color);
    transition: var(--transition);
    text-decoration: none;
}

.profile-dropdown button:hover,
.profile-dropdown .import-btn:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

/* Main Content */
.main-content {
    padding: 2rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    margin: 2rem auto;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    min-height: calc(100vh - 200px);
}

/* Controls */
.controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
    transform: translateY(-1px);
}

.sort-select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: var(--white);
    color: var(--dark-color);
    cursor: pointer;
    transition: var(--transition);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Items Grid */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.item-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.item-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.item-card.book {
    border-left-color: #3498db;
}

.item-card.movie {
    border-left-color: #e74c3c;
}

.item-card.series {
    border-left-color: #9b59b6;
}

.item-card.podcast {
    border-left-color: #f39c12;
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.item-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.item-type {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.item-type.book {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
}

.item-type.movie {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
}

.item-type.series {
    background: rgba(155, 89, 182, 0.1);
    color: #9b59b6;
}

.item-type.podcast {
    background: rgba(243, 156, 18, 0.1);
    color: #f39c12;
}

.item-rating {
    display: flex;
    gap: 0.2rem;
    margin-bottom: 0.5rem;
}

.item-rating .star {
    color: #ffd700;
    font-size: 1rem;
}

.item-rating .star.empty {
    color: var(--gray-300);
}

.item-genres {
    margin-top: 0.25rem;
}

.item-genres .genre-tag {
    font-size: 0.8rem;
    color: #667eea;
    font-weight: 500;
    background: rgba(102, 126, 234, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    display: inline-block;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

.item-status {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.item-status.want-to-read {
    background: rgba(255, 193, 7, 0.2);
    color: #856404;
}

.item-status.currently-reading {
    background: rgba(23, 162, 184, 0.2);
    color: #0c5460;
}

.item-status.completed {
    background: rgba(40, 167, 69, 0.2);
    color: #155724;
}

.item-notes {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.action-btn {
    padding: 0.5rem;
    border: none;
    background: var(--gray-100);
    color: var(--gray-600);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

.action-btn.delete:hover {
    background: var(--danger-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.empty-state h2 {
    font-size: 1.5rem;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.5rem 0;
    margin-bottom: 1rem;
}

.modal-header h2 {
    color: var(--dark-color);
    font-size: 1.3rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-600);
    padding: 0.25rem;
    border-radius: 4px;
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--gray-100);
    color: var(--danger-color);
}

/* Form Styles */
form {
    padding: 0 1.5rem 1.5rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Star Rating */
.rating-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.star-rating {
    display: flex;
    gap: 0.25rem;
}

.star-rating .star {
    font-size: 1.5rem;
    color: var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
}

.star-rating .star:hover,
.star-rating .star.active {
    color: #ffd700;
    transform: scale(1.1);
}

/* Genre Checkboxes */
.genre-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 0.75rem;
    background: #f8f9fa;
}

.genre-checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.genre-checkbox-item:hover {
    background: rgba(102, 126, 234, 0.1);
}

.genre-checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

.genre-checkbox-item label {
    margin: 0;
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .tabs {
        order: 2;
        flex-wrap: wrap;
        justify-content: center;
    }

    .tab-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .main-content {
        margin: 1rem auto;
        padding: 1rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

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

    .item-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .modal-content {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }

    .form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .app-name {
        font-size: 1.5rem;
    }

    .tabs {
        gap: 0.25rem;
    }

    .tab-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }

    .item-card {
        padding: 1rem;
    }

    .item-title {
        font-size: 1.1rem;
    }
}