/* Kanban App Layout */
.kanban-app {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 8rem 2rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-header h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-family: var(--font-family-heading);
}

.tool-header .description {
    font-size: 1.1rem;
    color: var(--text-color-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.kanban-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 600px;
}

/* Sidebar Styles */
.kanban-sidebar {
    background-color: var(--card-background);
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.columns-list {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
}

.column-item {
    padding: 0.75rem;
    border-radius: 5px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.column-item:hover {
    background-color: var(--background-color);
}

.column-item.active {
    background-color: var(--background-color);
    border-color: var(--primary-color);
}

.column-item h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.column-item p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-color-secondary);
}

/* Board Section */
.kanban-content {
    background-color: var(--card-background);
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.board-section {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.board-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1rem;
}

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

.board-container {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    padding: 1rem;
    flex-grow: 1;
    overflow-x: auto;
    min-height: 500px;
}

/* Column Styles */
.kanban-column {
    background-color: var(--background-color);
    border-radius: 5px;
    border: 1px solid var(--border-color);
    min-width: 300px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    height: fit-content;
}

.kanban-column.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.column-header {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.column-header h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    cursor: pointer;
    flex-grow: 1;
}

.column-header h3:hover {
    color: var(--primary-color);
}

.column-edit-input {
    display: none;
    width: 100%;
    padding: 0.25rem;
    font-size: 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 3px;
    background-color: var(--background-color);
    color: var(--text-color);
}

.column-edit-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.add-task-btn {
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 3px;
    margin-left: 0.5rem;
    transition: var(--transition);
}

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

.column-content {
    flex-grow: 1;
    padding: 0.75rem;
    overflow-y: auto;
    min-height: 100px;
    max-height: calc(100vh - 300px);
}

/* Task Styles */
.kanban-task {
    background-color: var(--card-background);
    border-radius: 5px;
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    cursor: move;
    transition: var(--transition);
    position: relative;
}

.kanban-task:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.kanban-task h4 {
    margin: 0 0 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: text;
}

.kanban-task p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-color-secondary);
    cursor: text;
}

.task-delete-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 3px;
    opacity: 0;
    transition: var(--transition);
}

.kanban-task:hover .task-delete-btn {
    opacity: 1;
}

.task-delete-btn:hover {
    color: #e74c3c;
    background-color: var(--background-color);
}

.task-edit-input {
    width: 100%;
    padding: 0.25rem;
    font-size: inherit;
    border: 1px solid var(--primary-color);
    border-radius: 3px;
    background-color: var(--background-color);
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.task-edit-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-color);
}

/* Drag and Drop Styles */
.kanban-task.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.column-content.drag-over {
    background-color: var(--background-color);
    border: 2px dashed var(--primary-color);
}

/* Button Styles */
.primary-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.primary-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.secondary-button {
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 0.5rem 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.secondary-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.secondary-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

#deleteColumnBtn {
    background-color: #e74c3c;
    color: white;
    border-color: #e74c3c;
}

#deleteColumnBtn:hover {
    background-color: #c0392b;
    border-color: #c0392b;
}

#deleteColumnBtn:disabled {
    background-color: var(--background-color);
    color: var(--text-color-secondary);
    border-color: var(--border-color);
    opacity: 0.6;
}

/* Footer styles */
footer {
    background-color: var(--card-background);
    padding: 1rem;
    text-align: center;
    margin-top: auto;
    width: 100%;
    box-shadow: var(--shadow);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    color: var(--text-color);
}

.footer-content p {
    margin: 0;
    opacity: 0.8;
}

/* Info Section */
.info-section {
    margin-top: 2rem;
    text-align: center;
    padding: 2rem;
}

.info-section h2 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    font-family: var(--font-family-heading);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 0 auto;
    max-width: 1200px;
}

.info-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card h3 {
    margin: 0.5rem 0;
    color: var(--text-color);
    font-family: var(--font-family-heading);
}

.info-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-color-secondary);
}

/* Header & Navigation */
header {
    background-color: var(--card-background);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
    width: auto;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links .home-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 5px;
    transition: var(--transition);
}

.nav-links .home-link:hover {
    background-color: var(--background-color);
}

/* Theme Switcher */
.theme-switcher {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
    background-color: var(--background-color);
    padding: 0.25rem;
    border-radius: 2rem;
    box-shadow: var(--shadow);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .board-container {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .kanban-app {
        padding: 6rem 1rem 2rem;
    }

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

    .board-actions {
        flex-wrap: wrap;
    }

    .primary-button,
    .secondary-button {
        flex: 1;
        justify-content: center;
    }

    .kanban-column {
        min-width: 250px;
        max-width: 250px;
    }

    .info-section {
        padding: 1rem;
    }

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

/* Confirm Dialog */
.confirm-dialog {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.confirm-dialog.active {
    display: flex;
}

.confirm-dialog-content {
    background-color: var(--card-background);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    max-width: 400px;
    width: 90%;
}

.confirm-dialog-content h3 {
    margin: 0 0 1rem 0;
    color: var(--text-color);
    font-family: var(--font-family-heading);
}

.confirm-dialog-content p {
    margin: 0 0 1.5rem 0;
    color: var(--text-color-secondary);
    line-height: 1.5;
}

.confirm-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

#confirmDeleteBtn {
    background-color: #e74c3c;
    color: white;
    border-color: #e74c3c;
}

#confirmDeleteBtn:hover {
    background-color: #c0392b;
    border-color: #c0392b;
}