/* ========== VARIABLE DE COLOR PRINCIPAL ========== */
:root {
  --color-principal: #6b46c1;
}

/* ========== NOTAS - OVERLAY PRINCIPAL ========== */
.notas-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: color-mix(in srgb, var(--color-principal, #6b46c1) 8%, white);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ========== HEADER DE NOTAS ========== */
.notas-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    flex-shrink: 0;
}

.notas-titulo {
    font-size: 1.3rem;
    font-weight: 700;
    color: #000000;
    margin: 0;
    letter-spacing: 2px;
}

.notas-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.notas-btn-volver,
.notas-btn-agregar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: color-mix(in srgb, var(--color-principal, #6b46c1) 12%, white);
    color: #000000;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    min-width: 44px;
    min-height: 44px;
}

.notas-btn-volver:hover,
.notas-btn-agregar:hover {
    background: var(--color-principal, #6b46c1);
    color: white;
}

.notas-select-columnas {
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid #ddd;
    font-size: 0.85rem;
    background: white;
    color: var(--color-principal, #6b46c1);
    cursor: pointer;
}

/* ========== BUSCADOR ========== */
.notas-buscador {
    padding: 15px 20px;
    flex-shrink: 0;
}

.notas-input-buscar {
    width: 100%;
    padding: 14px 20px;
    border-radius: 15px;
    border: 2px solid color-mix(in srgb, var(--color-principal, #6b46c1) 20%, white);
    font-size: 1rem;
    background: white;
    transition: all 0.3s;
    outline: none;
}

.notas-input-buscar:focus {
    border-color: var(--color-principal, #6b46c1);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--color-principal, #6b46c1) 15%, transparent);
}

.notas-input-buscar::placeholder {
    color: #b0a0c0;
}

/* ========== FILTROS COMBINADOS ========== */
.notas-filtros {
    padding: 0 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.notas-filtro-tiempo,
.notas-filtro-grupo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filtro-icono {
    font-size: 1.2rem;
    color: var(--color-principal, #6b46c1);
    width: 24px;
    text-align: center;
}

.filtro-botones {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filtro-btn {
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid color-mix(in srgb, var(--color-principal, #6b46c1) 25%, white);
    background: white;
    color: var(--color-principal, #6b46c1);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

.filtro-btn:hover {
    background: color-mix(in srgb, var(--color-principal, #6b46c1) 12%, white);
    border-color: var(--color-principal, #6b46c1);
}

.filtro-btn.activo {
    background: var(--color-principal, #6b46c1);
    color: white;
    border-color: var(--color-principal, #6b46c1);
}

.emoji-grupo {
    font-size: 0.9rem;
}

/* ========== GRID DE NOTAS ========== */
.notas-grid {
    flex: 1;
    overflow-y: auto;
    padding: 0 20px 20px;
    display: grid;
    gap: 15px;
}

.notas-grid.columnas-1 {
    grid-template-columns: 1fr;
}

.notas-grid.columnas-3 {
    grid-template-columns: repeat(3, 1fr);
}

.notas-grid.columnas-6 {
    grid-template-columns: repeat(6, 1fr);
}

.notas-vacio {
    grid-column: 1 / -1;
    text-align: center;
    color: #999;
    padding: 60px 20px;
    font-size: 1.1rem;
}

/* ========== TARJETA DE NOTA ========== */
.nota-card {
    background: white;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid color-mix(in srgb, var(--color-principal, #6b46c1) 10%, white);
    display: flex;
    flex-direction: column;
}

.nota-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px color-mix(in srgb, var(--color-principal, #6b46c1) 10%, transparent);
    border-color: color-mix(in srgb, var(--color-principal, #6b46c1) 25%, white);
}

.nota-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.nota-card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #000000;
    margin: 0;
    flex: 1;
    word-break: break-word;
}

.nota-card-eliminar {
    background: none;
    border: none;
    color: #e74c3c;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 6px;
    font-size: 0.8rem;
    opacity: 0;
    transition: all 0.2s;
    flex-shrink: 0;
}

.nota-card:hover .nota-card-eliminar {
    opacity: 0.6;
}

.nota-card-eliminar:hover {
    opacity: 1;
    background: #fee;
}

.nota-card p {
    color: #666;
    font-size: 0.85rem;
    margin: 0;
    line-height: 1.4;
    word-break: break-word;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical;
}

/* ========== MODAL DE NOTA ========== */
.notas-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 4000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.notas-modal {
    background: white;
    border-radius: 20px;
    padding: 30px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.notas-modal h2 {
    margin: 0 0 20px;
    color: #000000;
    font-size: 1.3rem;
    text-align: center;
}

.notas-input-titulo {
    width: 100%;
    padding: 12px 15px;
    border-radius: 12px;
    border: 2px solid color-mix(in srgb, var(--color-principal, #6b46c1) 20%, white);
    font-size: 1rem;
    margin-bottom: 15px;
    outline: none;
    transition: border-color 0.2s;
}

.notas-input-titulo:focus {
    border-color: var(--color-principal, #6b46c1);
}

/* Selector de grupo en el modal */
.notas-select-grupo {
    width: 100%;
    padding: 10px 12px;
    border-radius: 12px;
    border: 2px solid color-mix(in srgb, var(--color-principal, #6b46c1) 20%, white);
    font-size: 0.9rem;
    margin-bottom: 15px;
    background: white;
    outline: none;
    transition: border-color 0.2s;
}

.notas-select-grupo:focus {
    border-color: var(--color-principal, #6b46c1);
}

.notas-input-contenido {
    width: 100%;
    padding: 12px 15px;
    border-radius: 12px;
    border: 2px solid color-mix(in srgb, var(--color-principal, #6b46c1) 20%, white);
    font-size: 0.95rem;
    min-height: 200px;
    resize: vertical;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    line-height: 1.5;
}

.notas-input-contenido:focus {
    border-color: var(--color-principal, #6b46c1);
}

.notas-modal-botones {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: flex-end;
}

.notas-btn-cancelar {
    padding: 10px 20px;
    border-radius: 12px;
    border: 1px solid #ddd;
    background: white;
    color: #666;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.notas-btn-cancelar:hover {
    background: #f5f5f5;
}

.notas-btn-guardar {
    padding: 10px 25px;
    border-radius: 12px;
    border: none;
    background: var(--color-principal, #6b46c1);
    color: white;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 0.2s;
}

.notas-btn-guardar:hover {
    background: var(--color-principal, #6b46c1);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .notas-grid.columnas-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .notas-grid.columnas-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .notas-grid.columnas-3,
    .notas-grid.columnas-6 {
        grid-template-columns: 1fr;
    }
    
    .notas-titulo {
        font-size: 1.1rem;
    }
    
    .notas-modal {
        padding: 20px;
    }

    .filtro-btn {
        font-size: 0.7rem;
        padding: 4px 10px;
    }
    
    .notas-filtros {
        padding: 0 10px 10px;
    }
}