@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Light Theme (Estilo Stripe/Notion Premium) */
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --primary: #2563eb; /* Azul Stripe */
    --primary-hover: #1d4ed8;
    --secondary: #475569;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --radius: 10px;
    --font-sans: 'Inter', sans-serif;
}

[data-theme="dark"] {
    /* Dark Theme (Estilo Linear/Vercel) */
    --background: #09090b;
    --surface: #09090b;
    --surface-hover: #18181b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #a1a1aa;
    --text: #f4f4f5;
    --text-muted: #a1a1aa;
    --border: #27272a;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--background);
    color: var(--text);
    font-family: var(--font-sans);
    letter-spacing: -0.015em;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Anular estilos de Bootstrap para un acabado Flat/Minimalista */
.navbar {
    background-color: var(--surface) !important;
    border-bottom: 1px solid var(--border) !important;
    padding: 16px 0 !important;
    box-shadow: var(--shadow) !important;
}

.navbar-brand {
    color: var(--text) !important;
    font-weight: 700 !important;
    font-size: 1.1rem !important;
    letter-spacing: -0.02em;
}

.navbar-nav .nav-link {
    color: var(--text-muted) !important;
    font-weight: 500 !important;
    font-size: 0.875rem !important;
    padding: 6px 12px !important;
    border-radius: 6px;
    transition: color 0.15s, background-color 0.15s;
}

.navbar-nav .nav-link:hover {
    color: var(--text) !important;
    background-color: var(--surface-hover);
}

/* Tarjetas y Contenedores */
.zen-card, .card {
    background-color: var(--surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    padding: 24px !important;
    box-shadow: var(--shadow) !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.zen-card:hover, .card:hover {
    border-color: var(--primary) !important;
    box-shadow: 0 4px 12px 0 rgba(0,0,0,0.03) !important;
}

/* Textos */
.text-zen-muted, .text-muted {
    color: var(--text-muted) !important;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text) !important;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Botones */
.btn {
    border-radius: 6px !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    padding: 8px 16px !important;
    transition: all 0.15s ease-in-out !important;
}

.btn-primary, .btn-zen {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #ffffff !important;
}

.btn-primary:hover, .btn-zen:hover {
    background-color: var(--primary-hover) !important;
    border-color: var(--primary-hover) !important;
}

.btn-outline-secondary, .btn-outline-light {
    border-color: var(--border) !important;
    color: var(--text-muted) !important;
    background-color: var(--surface) !important;
}

.btn-outline-secondary:hover, .btn-outline-light:hover {
    background-color: var(--surface-hover) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

.btn-brain-off {
    background-color: var(--danger) !important;
    border-color: var(--danger) !important;
    color: #ffffff !important;
}

.btn-brain-off:hover {
    opacity: 0.9 !important;
}

/* Kanban */
.kanban-col {
    background-color: var(--surface-hover) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    padding: 16px !important;
    min-height: 520px;
}

.kanban-task {
    background-color: var(--surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px !important;
    padding: 16px !important;
    margin-bottom: 12px !important;
    box-shadow: var(--shadow) !important;
}

.kanban-task:hover {
    border-color: var(--primary) !important;
}

/* Time blocking list */
.time-block-item {
    border-left: 3px solid var(--primary) !important;
    background-color: var(--surface) !important;
    border-radius: 0 8px 8px 0 !important;
    padding: 14px 18px !important;
    margin-bottom: 10px !important;
    border-top: 1px solid var(--border) !important;
    border-right: 1px solid var(--border) !important;
    border-bottom: 1px solid var(--border) !important;
}

/* Inputs y Selectores */
.form-control, .form-select {
    background-color: var(--surface) !important;
    border: 1px solid var(--border) !important;
    color: var(--text) !important;
    border-radius: 6px !important;
    padding: 10px 14px !important;
    font-size: 0.875rem !important;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15) !important;
}

/* Chat */
#chat-history {
    border-radius: 8px !important;
    background-color: var(--surface-hover) !important;
    border: 1px solid var(--border) !important;
    padding: 16px !important;
}

/* Modales */
.modal-content {
    background-color: var(--surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
}

.modal-header, .modal-footer {
    border-color: var(--border) !important;
}

/* Grupo de Energía Segmentado */
.energy-group {
    background-color: var(--surface-hover) !important;
    padding: 4px !important;
    border-radius: 8px !important;
}

.energy-group .btn {
    border: none !important;
    color: var(--text-muted) !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    background-color: transparent !important;
    border-radius: 6px !important;
}

.energy-group .btn:hover {
    background-color: rgba(0, 0, 0, 0.04) !important;
    color: var(--text) !important;
}

.energy-group .btn.active-1 {
    background-color: #fee2e2 !important;
    color: #991b1b !important;
}

.energy-group .btn.active-2 {
    background-color: #fef3c7 !important;
    color: #92400e !important;
}

.energy-group .btn.active-3 {
    background-color: #d1fae5 !important;
    color: #065f46 !important;
}

/* Badges */
.badge {
    padding: 5px 10px !important;
    font-weight: 500 !important;
    border-radius: 6px !important;
}

.badge.bg-light {
    background-color: var(--surface-hover) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
}

/* Theme Toggle */
.theme-toggle-btn {
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
    background-color: var(--surface) !important;
    border-radius: 6px;
    padding: 6px 10px;
}

.theme-toggle-btn:hover {
    color: var(--text) !important;
    background-color: var(--surface-hover) !important;
}

/* Lucide */
svg.lucide {
    stroke-width: 1.75;
}

/* Resizing y Colapso de Columnas */
.kanban-column {
    position: relative;
    user-select: auto;
    flex: 1 1 280px;
    min-width: 150px;
    transition: flex 0.3s ease, width 0.3s ease;
}


.kanban-resizer {
    position: absolute;
    top: 0;
    right: -2px;
    bottom: 0;
    width: 6px;
    cursor: col-resize;
    z-index: 100;
    transition: background-color 0.2s;
    background-color: transparent;
}

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

.kanban-column.collapsed {
    flex: 0 0 55px !important;
    width: 55px !important;
    min-width: 55px !important;
    overflow: hidden;
}


.kanban-column.collapsed .kanban-header {
    display: none !important;
}

.kanban-column.collapsed .collapsed-title {
    display: flex !important;
}

.kanban-column.collapsed .kanban-content-wrapper {
    display: none !important;
}

.kanban-column.collapsed .kanban-resizer {
    display: none !important;
}

.kanban-column .kanban-col {
    transition: padding 0.3s ease;
}

.kanban-column.collapsed .kanban-col {
    padding: 10px 0 !important;
}

/* Rediseño Zen y Premium de la Tarjeta */
.kanban-task {
    background-color: var(--surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: 14px !important;
    padding: 16px !important;
    margin-bottom: 12px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease !important;
}

.kanban-task:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06) !important;
}

/* Título */
.task-title {
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    color: var(--text) !important;
    line-height: 1.4 !important;
    margin: 0 !important;
    cursor: pointer;
    transition: color 0.2s;
}

.task-title:hover {
    color: var(--primary) !important;
}

/* Eliminar */
.task-delete-btn {
    border: none !important;
    background: transparent !important;
    color: var(--text-muted) !important;
    padding: 2px !important;
    border-radius: 4px;
    opacity: 0.5;
    transition: opacity 0.2s, color 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-delete-btn:hover {
    opacity: 1;
    color: #ef4444 !important;
    background-color: rgba(239, 68, 68, 0.08) !important;
}

.task-delete-btn svg {
    width: 14px;
    height: 14px;
}

/* Descripción */
.task-desc {
    font-size: 0.8rem !important;
    color: var(--text-muted) !important;
    line-height: 1.5 !important;
    margin-top: 6px !important;
    margin-bottom: 12px !important;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    white-space: pre-wrap;
}

/* Badges */
.task-meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem !important;
    font-weight: 500 !important;
    background-color: var(--surface-hover) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
    border-radius: 6px !important;
    padding: 3px 8px !important;
}

.task-due-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem !important;
    font-weight: 600 !important;
    background-color: rgba(239, 68, 68, 0.08) !important;
    color: #ef4444 !important;
    border: 1px solid rgba(239, 68, 68, 0.15) !important;
    border-radius: 6px !important;
    padding: 3px 8px !important;
}

/* Estrellas */
.energy-stars {
    font-size: 0.8rem !important;
    color: #fbbf24 !important; /* Ámbar / Oro */
    letter-spacing: -1px;
}

/* Enlaces del cerebro */
.task-brain-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem !important;
    font-weight: 500 !important;
    color: #06b6d4 !important; /* Cian */
    text-decoration: none;
    transition: opacity 0.2s;
}

.task-brain-link:hover {
    opacity: 0.8;
}

/* Separador Dashed */
.border-top-dashed {
    border-top: 1px dashed var(--border) !important;
}

/* Led Pulsante */
.pulsing-led {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #10b981; /* Verde */
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 1.6s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.task-time-counter {
    font-family: var(--bs-font-monospace), monospace !important;
    font-size: 0.75rem !important;
    font-weight: 500 !important;
    color: var(--text-muted) !important;
}

/* Botones de Control Enfoque */
.btn-start-focus {
    background-color: var(--primary) !important;
    color: white !important;
    border: none !important;
    font-size: 0.68rem !important;
    font-weight: 600 !important;
    padding: 3px 10px !important;
    border-radius: 6px !important;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: opacity 0.2s;
}

.btn-start-focus:hover {
    opacity: 0.9;
}

.btn-pause-focus {
    background-color: var(--surface-hover) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
    padding: 3px 8px !important;
    border-radius: 6px !important;
    transition: background-color 0.2s, color 0.2s;
}

.btn-pause-focus:hover {
    background-color: rgba(0, 0, 0, 0.03) !important;
    color: var(--text) !important;
}

.btn-complete-task {
    background-color: #d1fae5 !important;
    color: #065f46 !important;
    border: 1px solid #a7f3d0 !important;
    padding: 3px 8px !important;
    border-radius: 6px !important;
    transition: opacity 0.2s;
}

.btn-complete-task:hover {
    opacity: 0.9;
}

/* Dropdowns Inferiores Translúcidos */
.btn-action-dropdown {
    width: 100%;
    text-align: center;
    background-color: var(--surface-hover) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
    font-size: 0.7rem !important;
    padding: 4px 8px !important;
    border-radius: 6px !important;
    font-weight: 500 !important;
    transition: background-color 0.2s, color 0.2s;
}

.btn-action-dropdown:hover {
    background-color: rgba(0, 0, 0, 0.02) !important;
    color: var(--text) !important;
}

.btn-action-icon {
    background-color: var(--surface-hover) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border) !important;
    font-size: 0.7rem !important;
    padding: 4px 8px !important;
    border-radius: 6px !important;
    transition: background-color 0.2s, color 0.2s;
}

.btn-action-icon:hover {
    background-color: rgba(0, 0, 0, 0.02) !important;
    color: var(--text) !important;
}

/* Fecha de Creación */
.task-created-date {
    font-size: 0.72rem !important;
    color: var(--text-muted) !important;
    opacity: 0.75;
    display: flex;
    align-items: center;
    gap: 4px;
}