:root {
    --primary-color: #4a6bff;
    --primary-hover: #3a59e6;
    --secondary-color: #f5f7ff;
    --accent-color: #ffca28;
    --danger-color: #ff5252;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-dark: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Toolbar Styles */
.toolbar {
    background-color: var(--bg-dark);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.search-container {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.search-container input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: calc(var(--spacing-md) * 2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.search-container i {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.filter-container {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-container select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background-color: white;
}

.view-toggle {
    display: flex;
    gap: var(--spacing-xs);
}

.view-toggle button {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.view-toggle button:hover,
.view-toggle button.active {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Button Styles */
.primary-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.secondary-btn {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.secondary-btn:hover {
    background-color: rgba(74, 107, 255, 0.1);
}

.danger-btn {
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.danger-btn:hover {
    background-color: #e64a4a;
}

/* Edit Mode Indicator */
#edit-mode-indicator {
    background-color: var(--accent-color);
    color: var(--text-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#edit-mode-indicator.hidden {
    display: none;
}

/* Projects Container */
.projects-container {
    display: grid;
    gap: var(--spacing-lg);
    transition: var(--transition);
}

.projects-container.grid-view {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.projects-container.list-view {
    grid-template-columns: 1fr;
}

/* Project Cards */
.project-card {
    background-color: var(--bg-dark);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

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

.projects-container.list-view .project-card {
    display: grid;
    grid-template-columns: 120px 1fr;
}

.card-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .card-actions {
    opacity: 1;
}

.card-actions button {
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.card-image {
    height: 160px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--secondary-color);
}

.projects-container.list-view .card-image {
    height: 100%;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.card-status {
    position: absolute;
    top: -10px;
    left: var(--spacing-md);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.card-status.planning {
    background-color: #e3f2fd;
    color: #1976d2;
}

.card-status.development {
    background-color: #fff8e1;
    color: #ffa000;
}

.card-status.completed {
    background-color: #e8f5e9;
    color: #388e3c;
}

.card-title {
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    font-size: 18px;
    font-weight: 600;
}

.card-description {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.card-tag {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-sm);
}

.card-category {
    font-size: 12px;
    color: var(--text-light);
    background-color: var(--bg-light);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.card-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-link:hover {
    text-decoration: underline;
}

/* Add Card */
.add-card {
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
    cursor: pointer;
    background-color: transparent;
    transition: var(--transition);
}

.add-card:hover {
    border-color: var(--primary-color);
    background-color: rgba(74, 107, 255, 0.03);
}

.add-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-light);
}

.add-card-content i {
    font-size: 36px;
    color: var(--primary-color);
}

/* Edit Mode Card */
.project-card.edit-mode {
    border: 2px solid var(--primary-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.modal-content {
    background-color: var(--bg-dark);
    margin: 50px auto;
    max-width: 700px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.delete-modal-content {
    max-width: 500px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.close-modal,
.close-preview,
.close-delete-modal {
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover,
.close-preview:hover,
.close-delete-modal:hover {
    color: var(--danger-color);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Form Styles */
#project-form {
    padding: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 107, 255, 0.2);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* Tags Styles */
.tags-container {
    margin-top: var(--spacing-xs);
}

.tag-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.tag {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover,
.tag.selected {
    background-color: var(--primary-color);
    color: white;
}

.selected-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.selected-tag {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.remove-tag {
    cursor: pointer;
    font-size: 10px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-tag:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

/* Image Upload */
.image-upload-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

#image-preview {
    width: 100%;
    height: 200px;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    overflow: hidden;
}

#image-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

input[type="file"] {
    display: none;
}

.upload-btn {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

.upload-btn:hover {
    background-color: rgba(74, 107, 255, 0.1);
}

/* Preview Modal */
#preview-container {
    padding: var(--spacing-md);
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 2000;
}

.toast {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    color: white;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    animation: slideIn 0.3s ease forwards;
    max-width: 350px;
    min-width: 300px;
}

.toast.success {
    background-color: #4caf50;
}

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

.toast.info {
    background-color: var(--primary-color);
}

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

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

.toast.hide {
    animation: slideOut 0.3s ease forwards;
}

/* Papelera - Modo recuperación */
.recovery-bar {
    background-color: var(--bg-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

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

.recovery-message i {
    color: var(--accent-color);
}

.recovery-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-container,
    .filter-container,
    .view-toggle,
    #add-project-btn {
        width: 100%;
    }
    
    .filter-container {
        flex-direction: column;
    }
    
    .projects-container.grid-view {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .projects-container.list-view .project-card {
        grid-template-columns: 100px 1fr;
    }
}