:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --secondary: #64748b;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Navbar */
.navbar {
    background-color: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
    transition: transform 0.2s;
}

.nav-logo:hover {
    transform: scale(1.05);
}

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

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text);
    cursor: pointer;
    padding: 0.5rem;
}

.username {
    font-weight: 500;
    color: var(--text);
}

.btn-logout {
    background-color: var(--danger);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.4rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.btn-logout:hover {
    opacity: 0.9;
}

.nav-item {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: var(--text-muted);
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.2s;
    text-decoration: none;
}

.nav-item:hover {
    background-color: var(--bg);
    color: var(--primary);
}

.nav-item.active {
    background-color: var(--primary);
    color: white;
}

/* Sections */
.section {
    display: none;
}

.section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.filter-select {
    padding: 0.6rem;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
    font-family: inherit;
    font-size: 1rem;
    background-color: var(--card-bg);
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: opacity 0.2s;
}

.btn-primary { background-color: var(--primary); color: white; }
.btn-secondary { background-color: var(--secondary); color: white; }
.btn-cancel { background-color: #e2e8f0; color: var(--text); }
.btn:hover { opacity: 0.9; }

/* Task Cards */
.task-grid {
    display: grid;
    gap: 1rem;
}

.task-card {
    background-color: var(--card-bg);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border-left: 4px solid var(--border);
    transition: all 0.2s ease;
}

.compact-task {
    padding: 0.5rem 1rem;
}

.task-main-row {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 1rem;
}

.task-content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.task-title-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.task-badges {
    display: flex;
    gap: 0.35rem;
    align-items: center;
}

.badge-mini {
    font-size: 0.9rem;
}

.badge-client {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.1rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-client .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.task-sub-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.date-mini {
    white-space: nowrap;
}

.desc-mini {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 300px;
}

.task-actions-compact {
    display: flex;
    gap: 0.25rem;
    opacity: 0.5;
    transition: opacity 0.2s;
}

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

.task-card.priority-alta { border-left-color: var(--danger); }
.task-card.priority-media { border-left-color: var(--warning); }
.task-card.priority-baja { border-left-color: var(--success); }

.task-card.checked {
    opacity: 0.6;
}

.task-card.checked .task-title {
    text-decoration: line-through;
}

.task-check input {
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
    margin-top: 0.2rem;
}

.task-info {
    flex: 1;
}

.task-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.task-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    background-color: #f1f5f9;
    padding: 0.2rem 0.6rem;
    border-radius: 0.25rem;
    font-size: 0.9rem;
}

.date {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.task-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

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

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
    transition: color 0.2s;
}

.btn-icon.delete:hover { color: var(--danger); }
.btn-icon.archive:hover { color: var(--primary); }

/* Client Grid */
.client-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    width: 100%;
}

/* Root category grid container */
#categories-list,
#suggested-categories-list {
    width: 100%;
}

.client-card {
    background-color: var(--card-bg);
    padding: 0.75rem 1.25rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.2s ease;
    flex: 0 1 auto;
    min-width: fit-content;
}

.category-card {
    background-color: var(--card-bg);
    padding: 1.5rem 1rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all 0.2s ease;
    aspect-ratio: 1 / 1;
}

.client-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.client-info-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.client-name, .category-name { 
    font-weight: 600; 
    font-size: 1rem;
}

.client-actions {
    display: flex;
    gap: 0.25rem;
    margin-left: 0.5rem;
}

.category-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
    opacity: 1;
}

.category-actions .btn-icon {
    opacity: 1;
    color: var(--text-muted);
}

/* Notes Grid (reusing ideas-grid for now) */
.ideas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.idea-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
}

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

.idea-title { 
    font-size: 1.2rem; 
    margin: 0;
}

.idea-content { 
    white-space: pre-wrap; 
    font-size: 0.95rem; 
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.idea-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h3 {
    margin-bottom: 1.5rem;
}

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

.form-group label { 
    display: block; 
    margin-bottom: 0.5rem; 
    font-weight: 500; 
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
    font-family: inherit;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.form-row { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 1rem; 
}

.modal-actions { 
    display: flex; 
    justify-content: flex-end; 
    gap: 1rem; 
    margin-top: 1.5rem; 
}

.empty-msg { 
    text-align: center; 
    color: var(--text-muted); 
    padding: 3rem; 
    font-style: italic;
}

/* Emoji Picker */
.emoji-picker {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: var(--bg);
    border-radius: 0.4rem;
    border: 1px solid var(--border);
}

.emoji-btn {
    background: white;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
    font-size: 1.5rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.emoji-btn:hover {
    background-color: var(--bg);
    transform: scale(1.1);
}

.emoji-btn.active {
    background-color: var(--primary);
    border-color: var(--primary);
}

.selected-emoji {
    font-size: 2rem;
    text-align: center;
    padding: 1rem;
    background-color: var(--bg);
    border-radius: 0.4rem;
    margin-bottom: 1rem;
}

/* Loader */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid var(--primary);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.load-more-container {
    text-align: center;
    margin-top: 2rem;
}

.suggested-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px dashed var(--border);
}

.suggested-section h3 {
    margin-bottom: 0.5rem;
}

.category-card.suggested {
    opacity: 0.8;
    border-style: dashed;
}

.btn-sm {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
        order: 2;
    }

    .nav-logo {
        order: 1;
    }

    .nav-container {
        position: relative;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        border-top: 1px solid var(--border);
        gap: 0.25rem;
        z-index: 1000;
    }

    .nav-menu.show {
        display: flex;
    }

    .nav-item {
        width: 100%;
        text-align: left;
        padding: 0.85rem 1rem;
        text-decoration: none;
        border-radius: 0.5rem;
    }
    
    .nav-user {
        flex-direction: row;
        width: 100%;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--border);
        padding-top: 1rem;
        margin-top: 0.5rem;
        justify-content: space-between;
    }
    
    .btn-logout {
        padding: 0.4rem 0.8rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .header-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .ideas-grid {
        grid-template-columns: 1fr;
    }
}

/* Color Picker */
.color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background-color: #f8fafc;
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
    justify-content: center;
}

.color-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid white;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.2s ease;
    padding: 0;
}

.color-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.15);
}

.color-btn.active {
    transform: scale(1.1);
    border-color: #1e293b;
    box-shadow: 0 0 0 2px white, 0 0 0 4px var(--primary);
}

.selected-color-preview {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: #f1f5f9;
    border-radius: 0.5rem;
}

.selected-color-box {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.1);
}

.selected-color-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: #475569;
    text-transform: uppercase;
}

/* Confirmation Progress Bar */
.confirm-progress-container {
    width: 100%;
    height: 4px;
    background-color: #f1f5f9;
    border-radius: 2px;
    margin: 1.5rem 0 0.5rem 0;
    overflow: hidden;
}

.confirm-progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--danger);
    transition: width 1.5s linear;
}

/* Task Type Selector in Modal */
.task-type-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.type-option {
    background-color: #f1f5f9;
    border: 2px solid transparent;
    border-radius: 0.75rem;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #64748b;
}

.type-option i {
    font-size: 1.25rem;
}

.type-option span {
    font-size: 0.85rem;
    font-weight: 600;
}

.type-option:hover {
    background-color: #e2e8f0;
}

.type-option.active {
    background-color: var(--primary)15;
    border-color: var(--primary);
    color: var(--primary);
}

/* Visual Filters in Header */
.visual-filters {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.filter-pills {
    display: flex;
    background-color: #f1f5f9;
    padding: 0.25rem;
    border-radius: 2rem;
    gap: 0.25rem;
}

.pill {
    background: none;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pill:hover {
    color: var(--text);
}

.pill.active {
    background-color: white;
    color: var(--primary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.filter-select-visual {
    background-color: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.filter-select-visual:focus {
    border-color: var(--primary);
}

/* ===== NUEVA ESTRUCTURA DE CATEGORIAS ===== */

.categories-group {
    margin-bottom: 2.5rem;
    width: 100%;
}

.categories-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--bg);
}

.categories-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.category-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.75rem;
    aspect-ratio: 1;
    position: relative;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.category-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.category-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
    word-break: break-word;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
}

.category-actions .btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0.4rem;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border-radius: 0.4rem;
}

.category-actions .btn-icon:hover {
    background-color: rgba(0,0,0,0.05);
    color: var(--danger);
}

.category-card .btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    margin-top: auto;
}

.category-card.suggested {
    background-color: #f8fafc;
    border: 1px dashed var(--border);
}

.category-card.suggested:hover {
    background-color: #f1f5f9;
    border-color: var(--primary);
}

.suggested-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border);
}

.suggested-section > h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.suggested-section > p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.empty-msg {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
    font-style: italic;
}