/* Reset e configurações base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Mode Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --accent-dark: #d97706;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-muted: #cbd5e1;
    
    /* Background Colors */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-card: #ffffff;
    
    /* Border Colors */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadow Colors */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Border Radius */
    --border-radius: 8px;
    --border-radius-sm: 6px;
    --border-radius-lg: 12px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-dark: #6366f1;
    --primary-light: #a5b4fc;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    
    --border-color: #334155;
    --border-light: #475569;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.5);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    background-attachment: fixed;
    transition: var(--transition);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .header {
    background: rgba(30, 41, 59, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.header-logo h1 {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0.25rem;
}

.header-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

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

/* Botões */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(30, 41, 59, 1);
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Theme Toggle e Settings Toggle */
.theme-toggle,
.settings-toggle {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .settings-toggle {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.theme-toggle:hover,
.settings-toggle:hover {
    background: rgba(255, 255, 255, 1);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .theme-toggle:hover,
[data-theme="dark"] .settings-toggle:hover {
    background: rgba(30, 41, 59, 1);
}

.theme-toggle .fa-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    display: block;
}

.settings-toggle:hover {
    transform: scale(1.05);
}

/* Kanban Container */
.kanban-container {
    margin-top: 80px;
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--spacing-lg);
}

.kanban-board {
    display: flex;
    gap: var(--spacing-lg);
    min-height: 100%;
    padding-bottom: var(--spacing-lg);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin: 2rem auto;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .empty-state {
    background: rgba(30, 41, 59, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.6;
    color: var(--primary-color);
}

.empty-state h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.empty-state p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.empty-state .empty-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Column */
.column {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 300px;
    max-width: 300px;
    height: fit-content;
    max-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
}

[data-theme="dark"] .column {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.column-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

[data-theme="dark"] .column-header {
    background: rgba(30, 41, 59, 0.5);
}

.column-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.column-color-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.column-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.column-action {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    font-size: 0.875rem;
}

.column-action:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.column-content {
    padding: var(--spacing-md);
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.column-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.add-card-btn {
    width: 100%;
    padding: var(--spacing-sm);
    background: transparent;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
}

.add-card-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--bg-tertiary);
}

/* Card */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.4;
    flex: 1;
    margin-right: var(--spacing-sm);
}

.card-actions {
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: var(--transition);
}

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

.card-action {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 2px;
    border-radius: 2px;
    transition: var(--transition);
    font-size: 0.75rem;
}

.card-action:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-light);
}

.card-priority {
    padding: 2px var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-low {
    background: #dcfce7;
    color: #166534;
}

.priority-medium {
    background: #fef3c7;
    color: #92400e;
}

.priority-high {
    background: #fed7d7;
    color: #c53030;
}

.priority-urgent {
    background: #fecaca;
    color: #dc2626;
}

.card-due-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.card-assignee {
    font-size: 0.75rem;
    color: var(--text-light);
    font-style: italic;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-md) 0;
    margin-top: auto;
    z-index: 100;
}

[data-theme="dark"] .footer {
    background: rgba(30, 41, 59, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.footer-text a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.footer-text a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.footer-copyright {
    color: var(--text-light);
    font-size: 0.875rem;
    margin: 0;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-2xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h3 {
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    font-size: 1.25rem;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

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

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* Color Picker */
.color-picker {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.color-picker input[type="radio"] {
    display: none;
}

.color-option {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
    position: relative;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-picker input[type="radio"]:checked + .color-option {
    border-color: var(--text-primary);
    transform: scale(1.1);
}

.color-picker input[type="radio"]:checked + .color-option::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 0.75rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Drag and Drop */
.card.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
}

.column.drag-over {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

/* Responsividade */
@media (max-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-md);
        height: 70px;
    }
    
    .header-logo h1 {
        font-size: 1.5rem;
    }
    
    .header-subtitle {
        display: none;
    }
    
    .header-buttons {
        gap: var(--spacing-xs);
    }
    
    .header-controls {
        gap: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.75rem;
    }
    
    .kanban-container {
        margin-top: 70px;
        padding: var(--spacing-md);
    }
    
    .column {
        min-width: 280px;
        max-width: 280px;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        max-height: calc(100vh - 2rem);
    }
    
    .onboarding-content {
        max-width: 95vw;
    }
    
    .background-color-picker {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .settings-actions {
        flex-direction: column;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 var(--spacing-sm);
        height: 60px;
    }
    
    .header-logo h1 {
        font-size: 1.25rem;
    }
    
    .header-actions {
        gap: var(--spacing-xs);
    }
    
    .header-buttons {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .header-controls {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.75rem;
    }
    
    .kanban-container {
        margin-top: 60px;
        padding: var(--spacing-sm);
    }
    
    .column {
        min-width: 260px;
        max-width: 260px;
    }
    
    .background-color-picker {
        grid-template-columns: 1fr;
    }
    
    .settings-actions {
        flex-direction: column;
    }
    
    .onboarding-navigation {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .modal-content {
        margin: var(--spacing-sm);
        max-height: calc(100vh - 1rem);
    }
}

/* Animações */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: slideIn 0.3s ease-out;
}

/* Melhorias de acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible para melhor acessibilidade */
.btn:focus-visible,
.theme-toggle:focus-visible,
.card:focus-visible,
.column-action:focus-visible,
.card-action:focus-visible,
.modal-close:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Background Color Picker */
.background-color-picker {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.background-color-picker .color-option {
    width: 100%;
    height: 60px;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.background-color-picker .color-option:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.background-color-picker .color-option.selected {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.background-color-picker .color-option.selected::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 1.25rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 2;
}

.color-label {
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    text-align: center;
    line-height: 1.2;
}

/* Settings Section */
.settings-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.settings-section h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.settings-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Checkbox Styles */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
    gap: var(--spacing-sm);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
    background: var(--bg-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
}

/* Onboarding Styles */
.onboarding-content {
    max-width: 600px;
    max-height: 80vh;
}

.onboarding-steps {
    position: relative;
    min-height: 400px;
}

.onboarding-step {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.onboarding-step.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-content {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.step-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.step-content h4 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

/* Example Columns */
.step-example {
    margin-top: var(--spacing-lg);
}

.example-columns {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.example-column {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    min-width: 120px;
    max-width: 150px;
}

.example-column-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.example-card {
    padding: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

/* Features List */
.features-list {
    list-style: none;
    padding: 0;
    text-align: left;
    max-width: 400px;
    margin: 0 auto;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.features-list li i {
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

/* Onboarding Navigation */
.onboarding-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-lg);
}

.onboarding-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Background Gradients - Light Theme */
body[data-background="gradient-purple-blue"] {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

body[data-background="gradient-dark-blue"] {
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
}

body[data-background="gradient-green"] {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

body[data-background="gradient-orange"] {
    background: linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
}

body[data-background="gradient-pink"] {
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
}

body[data-background="gradient-cyan"] {
    background: linear-gradient(135deg, #ecfeff 0%, #cffafe 100%);
}

/* Background Gradients - Dark Theme */
[data-theme="dark"] body[data-background="gradient-purple-blue"] {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

[data-theme="dark"] body[data-background="gradient-dark-blue"] {
    background: linear-gradient(135deg, #0c1426 0%, #1e1b4b 100%);
}

[data-theme="dark"] body[data-background="gradient-green"] {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
}

[data-theme="dark"] body[data-background="gradient-orange"] {
    background: linear-gradient(135deg, #7c2d12 0%, #991b1b 100%);
}

[data-theme="dark"] body[data-background="gradient-pink"] {
    background: linear-gradient(135deg, #831843 0%, #581c87 100%);
}

[data-theme="dark"] body[data-background="gradient-cyan"] {
    background: linear-gradient(135deg, #164e63 0%, #155e75 100%);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}